An electromagnetic double-acting reciprocating pump

Abstract

The present invention discloses an electromagnetic double-acting reciprocating pump, which comprises a housing, a cylinder arranged in the housing, an electromagnetic piston arranged in the cylinder, and an electromagnet embedded in the electromagnetic piston; a conductive rail is arranged in the cylinder, and a circuit system is connected to the conductive rail for power supply; a power terminal of the electromagnetic piston is connected to the conductive rail for power supply via a brush; a permanent magnet is arranged at one end of the housing; and a water inlet and a water outlet are arranged on the housing; the electromagnetic double-acting reciprocating pump has a reasonable structure, high operating efficiency, good energy saving performance, and safe and reliable operation.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning, and in particular relates to an electromagnetic double-acting reciprocating pump. Background Art

[0002] A pump is a widely used fluid machine that transfers the mechanical energy of a prime mover or other external energy to a liquid, increasing the liquid's energy. Pumps are primarily used to transport liquids such as water, oil, acid and alkali solutions, emulsions, suspensoids, and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids. Pumps are widely used in the industrial sector, so improving their operating efficiency is crucial for energy conservation. The piston in an ordinary electromagnetic pump is made of permanent magnetic material, which is significantly affected by temperature. When transporting high-temperature fluids, the permanent magnets are prone to demagnetization, making it difficult to ensure the normal operation of the pump. This poses a significant threat to industrial production and can cause immeasurable losses due to the lack of guaranteed fluid flow. Summary of the Invention

[0003] The present invention provides an electromagnetic double-acting reciprocating pump, the purpose of which is to solve the above-mentioned problems existing in the prior art pumps, so that the pump has a reasonable structure, high operating efficiency, good energy saving, and safe and reliable operation.

[0004] The present invention specifically includes the following solutions:

[0005] The present invention provides an electromagnetic double-acting reciprocating pump comprising a housing, a cylinder being arranged in the housing, an electromagnetic piston being arranged in the cylinder, and an electromagnet being embedded in the electromagnetic piston; a conductive rail being arranged in the cylinder, and a circuit system being connected to the conductive rail for power supply; a power terminal of the electromagnetic piston being connected to the conductive rail for power supply via a brush; a permanent magnet being arranged at one end of the housing; and a water inlet and a water outlet being arranged on the housing.

[0006] Preferably, a permanent magnet is also provided at the other end of the shell, and the polarity directions of the permanent magnets at the two ends of the shell are opposite.

[0007] Preferably, the permanent magnet is arranged outside the shell.

[0008] Preferably, the brush contacts the conductive rail, and the wire of the brush passes through the threading hole on the threading plate and is connected to the brush.

[0009] Preferably, sealant is applied between the conductive wire of the brush and the gap between the threading hole.

[0010] Preferably, the threading plate is connected to the sealing card.

[0011] Preferably, the sealing card is a retractable card.

[0012] Preferably, a piston ring is provided on the outside of the electromagnetic piston.

[0013] Preferably, the conductive rail is embedded in the inner wall of the cylinder.

[0014] Preferably, an insulating layer is provided between the conductive rail and the cylinder.

[0015] The beneficial effects of the present invention are:

[0016] The electromagnetic double-acting reciprocating pump of the present invention has the following advantages: 1. The electromagnetic double-acting reciprocating pump of the present invention eliminates the need for a motor, connecting rod, and other mechanisms, resulting in a simpler structure; 2. The electromagnetic double-acting reciprocating pump of the present invention avoids motor efficiency loss and mechanical transmission loss, significantly improving overall operating efficiency; 3. The electromagnetic double-acting reciprocating pump of the present invention has a permanent magnet located outside the pump body, which allows for a better operating temperature. When conveying high-temperature fluids, this prevents the pump from malfunctioning due to demagnetization of the permanent magnet at high temperatures, thereby ensuring the reliability of the pump. The electromagnetic double-acting reciprocating pump of the present invention has a reasonable structure, high operating efficiency, good energy saving, and safe and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part 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 drawings:

[0018] Figure 1 Schematic diagram of the structure of an embodiment of the electromagnetic double-acting reciprocating pump of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another embodiment of the electromagnetic double-acting reciprocating pump of the present invention;

[0020] Figure 3 This is a structural diagram of the sealed card in the unextended state;

[0021] Figure 4 This is a schematic diagram of the structure of the sealed card in the telescopic state;

[0022] Figure 5 This is a schematic diagram of the structure in which one end of the sealing card is folded and retracted;

[0023] Figure 6 This is a schematic diagram of the structure for folding and stretching the two ends of the sealed card.

[0024] Figure 1 and Figure 2 The arrow in the middle shows the direction of water flow.

[0025] In the figure, 1 is the shell, 2 is the cylinder, 3 is the electromagnetic piston, 4 is the conductive rail, 5 is the circuit system, 6 is the brush, 7 is the permanent magnet, 8 is the water inlet, 9 is the water outlet, 10 is the threading plate, 11 is the threading hole, 12 is the sealing card, 121 is the spring ball, 13 is the first cavity, 14 is the second cavity, 15 is the first water inlet valve, 16 is the second water inlet valve, 17 is the first water outlet valve, 18 is the second water outlet valve, 19 is the piston ring, 20 is the inverter, 21 is the rectifier, and 22 is the industrial frequency power supply terminal. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1 As shown, an electromagnetic double-acting reciprocating pump includes a housing 1, a cylinder 2 is provided in the housing 1, an electromagnetic piston 3 is provided in the cylinder 2, and an electromagnet is embedded in the electromagnetic piston 3; a conductive rail 4 is provided in the cylinder 2, and a circuit system 5 is connected to the conductive rail 4 for power supply; the power terminal of the electromagnetic piston 3 is connected to the conductive rail 4 for power supply via a brush 6; a permanent magnet 7 is provided at one end of the housing 1; and a water inlet 8 and a water outlet 9 are provided on the housing 1.

[0030] Example 2

[0031] like Figure 2 As shown, an electromagnetic double-acting reciprocating pump is similar to Example 1, except that a permanent magnet 7 is also provided at the other end of the housing 1, and the polarity directions of the permanent magnets 7 at both ends of the housing 1 are opposite.

[0032] Example 3

[0033] An electromagnetic double-acting reciprocating pump, based on Example 1 or Example 2, can further include: the permanent magnet 7 being arranged outside the housing 1.

[0034] like Figure 3 As shown, it is also possible to further configure the brush 6 to contact the conductive rail 4 , and the wire of the brush 6 is connected to the brush 6 after passing through the threading hole 11 on the threading plate 10 .

[0035] Furthermore, sealant may be applied between the conductive wire of the brush 6 and the gap between the threading hole 11 .

[0036] Furthermore, the threading plate 10 is connected to the sealing card 12 .

[0037] It can also be further provided that both sides of the threading plate 10 are connected to the sealing card 12. This can prevent the fluid from entering the conductive rail 4 and avoid causing leakage.

[0038] like Figure 5 and Figure 6 As shown, the sealing card 12 can be further spliced ​​at at least two ends, and the ends of adjacent sealing cards 12 overlap and are connected by spring balls 121. The adjacent sealing cards 12 are folded by the spring balls 121 at the connection to achieve telescoping.

[0039] Furthermore, the sealing card 12 is a rolled telescopic structure.

[0040] Furthermore, the housing 1 has a first cavity 13 and a second cavity 14 therein.

[0041] Furthermore, the first cavity 13 and the second cavity 14 are respectively located outside two ends of the cylinder 2 .

[0042] Furthermore, the first cavity 13 and the second cavity 14 are respectively provided with a first water inlet valve 15 and a second water inlet valve 16 on the water inlet 8 side; the first cavity 13 and the second cavity 14 are respectively provided with a first water outlet valve 17 and a second water outlet valve 18 on the water outlet 9 side.

[0043] Furthermore, a piston ring 19 is provided on the outer side of the electromagnetic piston 3 .

[0044] Furthermore, the conductive rail 4 is embedded in the inner wall of the cylinder 2 .

[0045] Furthermore, an insulating layer may be provided between the conductive rail 4 and the cylinder 2 .

[0046] Furthermore, the number of the conductive rails 4 and the brushes 6 may be at least two sets.

[0047] Furthermore, the circuit system 5 includes an inverter 20 and a rectifier 21 that are electrically connected, and the inverter 20 is connected to the conductive rail 6 for power supply.

[0048] Furthermore, the industrial frequency power supply is connected to the rectifier 21 through the industrial frequency power supply terminal 22 for power supply.

[0049] The electromagnetic double-acting reciprocating pump described above operates as follows: For example, two conductive rails 4 are embedded within the pump, or multiple conductive rails 4 may be provided. The conductive rails 4 and the pump housing 1 may be connected by insulating material. The electromagnetic piston 3 draws power from the conductive rails 4 via brushes 6. To improve power supply reliability, multiple brushes 6 may be provided. The brushes 6 are connected to the power terminals of the electromagnetic piston 3 via a slot, which is equipped with a threading plate 10 and a sealing card 12 that can be moved left and right. A permanent magnet 7 is provided at one end of the electromagnetic double-acting reciprocating pump, or both ends of the pump, but the polarity of the two permanent magnets 7 should be opposite. By changing the direction of the current supplied to the conductive rails 4 by the circuit system 5, the polarity of the electromagnet within the electromagnetic piston 3 can be changed, thereby causing the electromagnetic piston 3 to move left or right under the action of the magnetic force.

[0050] When the electromagnetic piston 3 moves toward point b under the action of magnetic force, the internal pressure of the first cavity 13 gradually decreases, and the internal pressure of the second cavity 14 gradually increases. Under the action of the pressure difference, the first water inlet valve 15 opens, the second water inlet valve 16 closes, the first water outlet valve 17 closes, and the second water outlet valve 18 opens. The fluid flowing in from the water inlet 8 continuously flows into the first cavity 13 through the first water inlet valve 15, and the fluid inside the second cavity 14 continuously flows out from the second water outlet valve 18 and then flows out through the water outlet 9. When the electromagnetic piston 3 moves to the positioning point b, the current system changes the direction of the current. At this time, the polarity direction of the electromagnet inside the electromagnetic piston 3 changes. Under the action of the magnetic force, the electromagnetic piston 3 moves toward point a. The pressure inside the first cavity 13 gradually increases, and the pressure inside the second cavity 14 gradually decreases. Under the action of the pressure difference, the first water inlet valve 15 closes, the second water inlet valve 16 opens, the first water outlet valve 17 opens, and the second water outlet valve 18 closes. The fluid flowing in from the water inlet 8 continuously flows into the second cavity 14 through the second water inlet valve 16. The fluid inside the first cavity 13 is continuously squeezed out, flows out through the first water outlet valve 17, and then flows out from the water outlet 9 until the electromagnetic piston 3 moves to the positioning point a. This cycle continues, and the fluid can be continuously sucked in from the water inlet 8 and discharged from the water outlet 9.

[0051] The energy-saving principle of this electromagnetic double-acting reciprocating pump is as follows: compared to traditional reciprocating pumps, it eliminates the need for an electric motor, thus reducing efficiency losses. Conventional motors have an efficiency of 80%-90%, while this electromagnetic double-acting reciprocating pump can save 10-20% of the motor's efficiency. Furthermore, it eliminates the need for a connecting rod, thus reducing mechanical transmission losses and improving mechanical transmission efficiency by over 10%. These two efficiency improvements significantly enhance overall operating efficiency.

[0052] The above-mentioned electromagnetic double-acting reciprocating pump can replace the electromagnetic piston 3 with a permanent magnet 7 piston, and replace the external permanent magnet 7 with an electromagnet. This can also achieve the function of the pump, but there is a risk that the permanent magnet 7 is prone to demagnetization at high temperatures, making it difficult to ensure the continuous, stable and normal operation of the pump.

[0053] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. An electromagnetic double-acting reciprocating pump, comprising a housing, a cylinder being arranged in the housing, characterized in that: An electromagnetic piston is provided in the cylinder, and an electromagnet is embedded in the electromagnetic piston; a conductive rail is provided in the cylinder, and the circuit system is connected to the conductive rail for power supply; the power terminal of the electromagnetic piston is connected to the conductive rail for power supply through a brush; a permanent magnet is provided at one end of the shell; a water inlet and a water outlet are provided on the shell; the brush contacts the conductive rail, and the wire of the brush is connected to the brush after passing through the threading hole on the threading plate; a first cavity and a second cavity are provided in the shell, and the first cavity and the second cavity are respectively located on the outside of the two ends of the cylinder; the first cavity and the second cavity are respectively provided with a first water inlet valve and a second water inlet valve on the water inlet side; the first cavity and the second cavity are respectively provided with a first water outlet valve and a second water outlet valve on the water outlet side; the permanent magnet is provided on the outside of the shell; a sealant is applied between the wire of the brush and the gap between the threading hole, and both sides of the threading plate are connected to a sealing card, which can prevent the fluid from entering the conductive rail and avoid leakage; The electromagnetic piston draws power from the conductive rail through the brush, and by changing the direction of the current supplied to the conductive rail by the circuit system, the polarity direction of the electromagnet inside the electromagnetic piston is changed, so that the electromagnetic piston moves left or right under the action of magnetic force; When the electromagnetic piston moves toward point b under the action of magnetic force, the pressure inside the first cavity gradually decreases, and the pressure inside the second cavity gradually increases. Under the action of the pressure difference, the first water inlet valve opens, the second water inlet valve closes, the first water outlet valve closes, and the second water outlet valve opens. The fluid flowing in from the water inlet flows into the first cavity through the first water inlet valve, and the fluid in the second cavity flows out through the second water outlet valve and then flows out through the water outlet. When the electromagnetic piston moves to the positioning point b, the circuit system changes the direction of the current. At this time, the polarity direction of the electromagnet inside the electromagnetic piston changes. Under the action of the magnetic force, the electromagnetic piston moves toward point a. The pressure inside the first cavity gradually increases, and the pressure inside the second cavity gradually decreases. Under the action of the pressure difference, the first water inlet valve closes, the second water inlet valve opens, the first water outlet valve opens, and the second water outlet valve closes. The fluid flowing in from the water inlet continuously flows into the second cavity through the second water inlet valve. The fluid inside the first cavity is continuously squeezed out, flows out through the first water outlet valve, and then flows out from the water outlet until the electromagnetic piston moves to the positioning point a. In this way, the cycle continues, with fluid being sucked in from the water inlet and discharged from the water outlet.

2. The electromagnetic double-acting reciprocating pump according to claim 1, characterized in that: A permanent magnet is also provided at the other end of the shell, and the polarity directions of the permanent magnets at the two ends of the shell are opposite.

3. The electromagnetic double-acting reciprocating pump according to claim 1, wherein: The sealing card is a retractable card.

4. The electromagnetic double-acting reciprocating pump according to claim 1 or 2, characterized in that: A piston ring is arranged on the outer side of the electromagnetic piston.

5. The electromagnetic double-acting reciprocating pump according to claim 1 or 2, characterized in that: The conductive rail is embedded in the inner wall of the cylinder.

6. The electromagnetic double-acting reciprocating pump according to claim 1 or 2, characterized in that: An insulating layer is provided between the conductive rail and the cylinder.

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