Piston type pressure transmission equipment

Abstract

The utility model provides piston type pressure transmission equipment, which belongs to the field of pressure transmission, and comprises a piston cylinder, an auxiliary backpressure supplementing component for pressing double-end-face sealing is arranged outside the piston cylinder, and a liquid supplementing component for providing spacer liquid for the piston cylinder is arranged on one side of the piston cylinder. According to the double-end-face sealing device, stable back pressure is provided for double-end-face sealing through the arranged auxiliary back pressure supplementing assembly and the work of the piston cylinder, when the system pressure changes, the movable plug in the piston cylinder can correspondingly move according to the pressure change, and therefore the back pressure is adjusted, it is guaranteed that the sealing plate keeps effective contact and lubrication all the time, and the service life of the sealing plate is prolonged. And when the pressure of the system is increased, the movable plug in the piston cylinder can rapidly move, and the back pressure is increased, so that the pressure balance between the sealing plate and the sealed medium is kept.

Description

Technical Field

[0001] This utility model relates to the field of pressure transmission, and more specifically, to a piston-type pressure transmission device. Background Technology

[0002] Piston-type pressure transmission devices are mechanical devices widely used in hydraulic and pneumatic systems. They are primarily used to transmit power to liquid or gaseous media via piston movement, thereby achieving pressure control and transmission within the system. These devices offer advantages such as simple structure, reliable operation, and strong adaptability, and are widely used in industries such as manufacturing, aviation, aerospace, and automotive.

[0003] The existing technology still has the following drawbacks:

[0004] (1) When dealing with system pressure fluctuations, the sealing effect of existing equipment is easily affected. Due to the lack of an effective back pressure adjustment mechanism, when the system pressure changes suddenly, the sealing surface cannot be adjusted quickly to maintain the pressure balance with the sealed medium, resulting in poor contact or insufficient lubrication of the sealing surface, which in turn causes sealing leakage problems, seriously affecting the normal operation and service life of the equipment.

[0005] (2) Existing isolation fluid replenishment systems lack a real-time and accurate liquid level monitoring mechanism. The detection of high and low liquid levels is not sensitive enough, which results in the inability to trigger the replenishment signal in time when the liquid level is too low, or the inability to stop replenishment in time when the liquid level is too high, causing waste of resources or damage to equipment.

[0006] Therefore, we have made improvements to this and proposed a piston-type pressure transmission device. Utility Model Content

[0007] The purpose of this invention is to address the existing problems of insufficient sealing stability and inaccurate monitoring of isolation fluid replenishment.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] Piston-type pressure transmission devices are used to improve the above-mentioned problems.

[0010] The specific details of this utility model are as follows:

[0011] The device includes a piston cylinder, an auxiliary back pressure replenishment component for pressing double-end face seal is provided on the outside of the piston cylinder, a liquid replenishment component for providing isolation fluid to the piston cylinder is provided on one side of the piston cylinder, a monitoring component for detecting whether the piston cylinder is leaking is provided on the top of the piston cylinder, a heat exchange component for dissipating heat from the liquid replenishment component is provided inside the liquid replenishment component, and a support component for providing support for the entire device is provided at the bottom of the piston cylinder.

[0012] The auxiliary back pressure supplementation assembly includes sealing plates located at both ends of the piston cylinder. The two sets of sealing plates are fixedly connected to multiple sets of support rods by bolts. The multiple sets of support rods are located on the periphery of the piston cylinder. A movable plug is provided inside the piston cylinder. The movable plug passes through a set of sealing plates and is fixedly connected to them.

[0013] As a preferred technical solution of this utility model, the liquid replenishment assembly includes a storage tank located on one side of the piston cylinder. A feed pipe is fixedly installed on the top of the storage tank. The feed pipe passes through the storage tank and is fixedly connected to the storage tank. A high liquid level switch and a low liquid level switch are opened on one side of the storage tank. The high liquid level switch is located above the low liquid level switch. A liquid replenishment pipe is installed above the storage tank. The liquid replenishment pipe intersects with the feed pipe and is fixedly connected.

[0014] As a preferred technical solution of this utility model, the monitoring component includes a temperature and pressure gauge bolted to the top of the sealing plate, an instrument fixedly connected to one side of the temperature and pressure gauge, and a pressure relief valve provided on one side of the sealing plate, the pressure relief valve being electrically connected to the instrument.

[0015] As a preferred technical solution of this utility model, the heat exchange component includes an inlet and a outlet located at the bottom of the storage tank. The inlet and outlet are connected to an external refrigeration system. Both the inlet and outlet are fixedly equipped with control valves. A Z-shaped tube is fixedly connected to one end of the inlet inside the storage tank, and the other end of the Z-shaped tube is fixedly connected to the end of the outlet inside the storage tank.

[0016] As a preferred technical solution of this utility model, the support assembly includes a support column fixedly connected to the side wall of the storage tank, a fixed seat fixedly connected to the bottom of the piston cylinder, a base plate bolted to the bottom of the fixed seat, and the base plate fixedly connected to the support column.

[0017] As a preferred technical solution of this utility model, an identification plate is provided on the outer wall of the storage tank, and the identification plate is fixedly connected to the storage tank by bolts.

[0018] As a preferred technical solution of this utility model, one end of the replenishment tube is provided with a replenishment valve, and the number of replenishment valves is two sets.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the solution of this utility model:

[0021] 1. With the auxiliary back pressure supplementation component, the equipment provides stable back pressure for the double-end face seal through the operation of the piston cylinder. When the system pressure changes, the moving plug in the piston cylinder will move accordingly to adjust the back pressure, ensuring that the sealing plate always maintains effective contact and lubrication, and preventing seal leakage. When the system pressure increases, the moving plug in the piston cylinder will move rapidly to increase the back pressure, so as to maintain the pressure balance between the sealing plate and the sealed medium.

[0022] 2. The liquid replenishment system includes high-level and low-level switches on one side of the storage tank that monitor the liquid level in real time. The high-level switch is located above the low-level switch and is used to detect whether the liquid level has reached the high and low levels, respectively. When the liquid level in the storage tank drops to the position set by the low-level switch, the low-level switch is triggered, the system receives a liquid replenishment signal, and the liquid replenishment system starts working, replenishing liquid into the storage tank through the replenishment pipe. Attached Figure Description

[0023] Figure 1 A schematic diagram of the piston-type pressure transmission device provided by this utility model;

[0024] Figure 2 A schematic diagram of the rear structure of the piston-type pressure transmission device provided by this utility model;

[0025] Figure 3 A side view of the piston-type pressure transmission device provided by this utility model;

[0026] Figure 4 A cross-sectional structural schematic diagram of the piston-type pressure transmission device provided by this utility model;

[0027] Figure 5 A schematic diagram of the heat exchange component structure of the piston-type pressure transmission device provided by this utility model.

[0028] The image shows:

[0029] 1. Piston cylinder; 2. Auxiliary back pressure replenishment assembly; 201. Sealing plate; 202. Support rod; 203. Moving plug; 3. Liquid replenishment assembly; 301. Storage tank; 302. Feed pipe; 303. High level switch; 304. Low level switch; 305. Liquid replenishment pipe; 4. Monitoring assembly; 401. Temperature and pressure gauge; 402. Instrument; 403. Pressure relief valve; 5. Heat exchange assembly; 501. Liquid inlet; 502. Liquid outlet; 503. Control valve; 504. Z-shaped pipe; 6. Support assembly; 601. Support column; 602. Fixing base; 603. Base plate; 7. Identification plate; 8. Liquid replenishment valve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] like Figure 1 As shown, this embodiment proposes a piston-type pressure transmission device, including a piston cylinder 1. An auxiliary back pressure replenishment component 2 for double-end face sealing is provided outside the piston cylinder 1. A liquid replenishment component 3 for providing isolation fluid to the piston cylinder 1 is provided on one side of the piston cylinder 1. A monitoring component 4 for detecting whether the piston cylinder 1 is leaking is provided on the top of the piston cylinder 1. A heat exchange component 5 for dissipating heat from the liquid replenishment component 3 is provided inside the liquid replenishment component 3. A support component 6 for providing support to the entire device is provided at the bottom of the piston cylinder 1.

[0035] like Figure 5 As shown, the auxiliary back pressure supplementation component 2 includes sealing plates 201 located at both ends of the piston cylinder 1. Two sets of sealing plates 201 are fixedly connected to multiple sets of support rods 202 by bolts. These support rods 202 are located around the piston cylinder 1. A movable plug 203 is provided inside the piston cylinder 1. When the system pressure changes, the movable plug 203 inside the piston cylinder 1 moves accordingly to adjust the back pressure. The movable plug 203 passes through and is fixedly connected to one of the sealing plates 201. In use, the device provides stable back pressure for the double-end face seal through the operation of the piston cylinder 1. When the system pressure changes, the movable plug 203 inside the piston cylinder 1 moves accordingly to adjust the back pressure, ensuring that the sealing plates 201 always maintain effective contact and lubrication, preventing seal leakage. When the system pressure increases, the movable plug 203 inside the piston cylinder 1 moves rapidly to increase the back pressure, maintaining pressure balance between the sealing plates 201 and the sealed medium.

[0036] like Figure 2 As shown, the replenishment assembly 3 includes a storage tank 301 located on one side of the piston cylinder 1. A feed pipe 302 is fixedly installed on the top of the storage tank 301. The feed pipe 302 passes through the storage tank 301 and is fixedly connected to the storage tank 301. A high level switch 303 and a low level switch 304 are provided on one side of the storage tank 301. The high level switch 303 is located above the low level switch 304. A replenishment pipe 305 is provided above the storage tank 301. The replenishment pipe 305 intersects with the feed pipe 302 and is fixedly connected. A high-level switch 303 and a low-level switch 304 are installed on one side of the storage tank 301 to monitor the liquid level in the storage tank 301 in real time. The high-level switch 303 is located above the low-level switch 304 and is used to detect whether the liquid level has reached the high level and the low level, respectively. When the liquid level in the storage tank 301 drops to the position set by the low-level switch 304, the low-level switch 304 is triggered and liquid is replenished into the storage tank 301 through the replenishment pipe 305.

[0037] like Figure 2 As shown, the monitoring component 4 includes a temperature and pressure gauge 401 bolted to the top of the sealing plate 201. An instrument 402 is fixedly connected to one side of the temperature and pressure gauge 401, and a pressure relief valve 403 is provided on one side of the sealing plate 201. The pressure relief valve 403 is electrically connected to the instrument 402. The temperature and pressure gauge 401 is bolted to the top of the sealing plate 201 to monitor the temperature and pressure changes near the sealing plate 201 in real time. When the instrument 402 detects that the pressure near the sealing plate 201 exceeds or falls below a preset safety range, it sends an electrical signal to the pressure relief valve 403, triggering the pressure relief valve 403 to make corresponding adjustments to maintain the pressure stability near the sealing plate 201.

[0038] like Figure 2 and Figure 5 As shown, the heat exchange assembly 5 includes an inlet 501 and a drain 502 located at the bottom of the storage tank 301. The inlet 501 and the drain 502 are connected to an external refrigeration system. Both the inlet 501 and the drain 502 are fixedly equipped with control valves 503. One end of the inlet 501 located inside the storage tank 301 is fixedly connected to a Z-shaped tube 504, and the other end of the Z-shaped tube 504 is fixedly connected to the end of the drain 502 located inside the storage tank 301. The inlet 501 and outlet 502 are connected to an external refrigeration system, allowing the refrigerant to circulate at the bottom of the storage tank 301. The refrigeration system delivers the low-temperature refrigerant into the storage tank 301 through the inlet 501. After absorbing heat in the storage tank 301, the refrigerant returns to the refrigeration system through the outlet 502 for cooling, completing one cycle. The design of the Z-shaped tube 504 increases the flow path of the refrigerant in the storage tank 301, allowing the refrigerant to come into more full contact with the liquid in the storage tank 301, thereby improving the heat exchange efficiency.

[0039] like Figure 2As shown, the support assembly 6 includes a support column 601 fixedly connected to the side wall of the storage tank 301, a fixed seat 602 fixedly connected to the bottom of the piston cylinder 1, a base plate 603 bolted to the bottom of the fixed seat 602, and the base plate 603 fixedly connected to the support column 601, providing stable support for the entire device and facilitating its use.

[0040] like Figure 1 and Figure 2 As shown, an identification plate 7 is provided on the outer wall of the storage tank 301. The identification plate 7 is fixedly connected to the storage tank 301 by bolts. Information about the medium inside the storage tank 301, such as the medium name, specifications, and safety warnings, can be printed or written on the identification plate 7 so that operators can quickly understand the contents of the storage tank 301 and related safety information.

[0041] like Figure 3 As shown, a replenishment valve 8 is provided at one end of the replenishment pipe 305. There are two sets of replenishment valves 8, which are key components for controlling the liquid flow in the replenishment pipe 305. By opening or closing the replenishment valve 8, the flow of liquid from the replenishment source to the storage tank 301 can be regulated.

[0042] Specifically, in use, this piston-type pressure transmission device provides stable back pressure for the double-end face seal through the operation of the piston cylinder 1. When the system pressure changes, the movable plug 203 inside the piston cylinder 1 moves accordingly to adjust the back pressure, ensuring that the sealing plate 201 always maintains effective contact and lubrication, preventing seal leakage. When the system pressure increases, the movable plug 203 inside the piston cylinder 1 moves rapidly to increase the back pressure, maintaining pressure balance between the sealing plate 201 and the sealed medium. A high-level switch 303 and a low-level switch are located on one side of the storage tank 301. 304 monitors the liquid level in storage tank 301 in real time. The high liquid level switch 303 is located above the low liquid level switch 304 and is used to detect whether the liquid level has reached the high and low levels, respectively. When the liquid level in storage tank 301 drops to the position set by the low liquid level switch 304, the low liquid level switch 304 is triggered, and liquid is added to storage tank 301 through the replenishment pipe 305. Information about the medium in storage tank 301, such as the medium name, specifications, and safety warnings, can be printed or written on the identification plate 7 on the outer wall of storage tank 301 so that operators can quickly understand the contents of storage tank 301 and related safety information.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A piston-type pressure transmission device, comprising a piston cylinder (1), characterized in that, The piston cylinder (1) is provided with an auxiliary back pressure replenishment component (2) for double-end face sealing. A liquid replenishment component (3) for providing isolation fluid to the piston cylinder (1) is provided on one side of the piston cylinder (1). A monitoring component (4) for detecting whether the piston cylinder (1) is leaking is provided on the top of the piston cylinder (1). A heat exchange component (5) for dissipating heat from the liquid replenishment component (3) is provided inside the liquid replenishment component (3). A support component (6) for providing support to the entire device is provided at the bottom of the piston cylinder (1). The auxiliary back pressure supplementation component (2) includes sealing plates (201) located at both ends of the piston cylinder (1). The two sets of sealing plates (201) are fixedly connected to multiple sets of support rods (202) by bolts. The multiple sets of support rods (202) are located on the periphery of the piston cylinder (1). A movable plug (203) is provided inside the piston cylinder (1). The movable plug (203) passes through a set of sealing plates (201) and is fixedly connected to them.

2. The piston-type pressure transmission device according to claim 1, characterized in that, The replenishment assembly (3) includes a storage tank (301) located on one side of the piston cylinder (1). A feed pipe (302) is fixedly installed on the top of the storage tank (301). The feed pipe (302) passes through the storage tank (301) and is fixedly connected to the storage tank (301). A high level switch (303) and a low level switch (304) are provided on one side of the storage tank (301). The high level switch (303) is located above the low level switch (304). A replenishment pipe (305) is provided above the storage tank (301). The replenishment pipe (305) intersects with the feed pipe (302) and is fixedly connected.

3. The piston-type pressure transmission device according to claim 1, characterized in that, The monitoring component (4) includes a temperature and pressure gauge (401) bolted to the top of the sealing plate (201). An instrument (402) is fixedly connected to one side of the temperature and pressure gauge (401). A pressure relief valve (403) is provided on one side of the sealing plate (201). The pressure relief valve (403) is electrically connected to the instrument (402).

4. The piston-type pressure transmission device according to claim 2, characterized in that, The heat exchange assembly (5) includes an inlet (501) and a drain (502) located at the bottom of the storage tank (301). The inlet (501) and the drain (502) are connected to an external refrigeration system. Both the inlet (501) and the drain (502) are fixedly equipped with control valves (503). One end of the inlet (501) located inside the storage tank (301) is fixedly connected to a Z-shaped tube (504), and the other end of the Z-shaped tube (504) is fixedly connected to one end of the drain (502) located inside the storage tank (301).

5. A piston-type pressure transmission device according to claim 2, characterized in that, The support assembly (6) includes a support column (601) fixedly connected to the side wall of the storage tank (301), a fixed seat (602) fixedly connected to the bottom of the piston cylinder (1), a base plate (603) bolted to the bottom of the fixed seat (602), and the base plate (603) fixedly connected to the support column (601).

6. A piston-type pressure transmission device according to claim 2, characterized in that, The outer wall of the storage tank (301) is provided with an identification plate (7), which is fixedly connected to the storage tank (301) by bolts.

7. A piston-type pressure transmission device according to claim 2, characterized in that, One end of the replenishment tube (305) is provided with a replenishment valve (8), and there are two sets of replenishment valves (8).

Images