Diaphragm bag type energy accumulator

Abstract

The utility model discloses a diaphragm bag type energy accumulator, which relates to the field of energy accumulators and comprises an upper cavity, the upper cavity, a middle cavity and a lower cavity are sequentially welded through butt joints, the top of the upper cavity is provided with an air inlet, the bottom of the lower cavity is provided with an oil valve, and the oil valve is connected with the middle cavity. And the interior of the middle cavity is connected with a diaphragm piece through a fastener, the interior of the middle cavity is provided with a mounting groove, the interior of the mounting groove is in threaded connection with a mounting ring block, and the mounting ring block is fixedly connected with the heat transfer pad. According to the energy accumulator, the middle cavity is kept at a constant temperature through heating of the heating rod and heat transfer of the heat transfer pad, in this way, in cold weather, oil in the energy accumulator cannot be solidified, use of the energy accumulator is not affected, meanwhile, hot water is not arranged for heating the middle cavity, and the situation that follow-up use of the energy accumulator is affected due to hot water leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of accumulators, in particular to a diaphragm bag type accumulator. Background Art

[0002] The accumulator is an energy storage element in the crane hydraulic system. It uses the compressibility of gas to store the pressure energy of liquid. When the system pressure increases and the gas is compressed, the hydraulic system fills the accumulator with liquid; when the system pressure drops, the compressed gas expands and transports the stored liquid back to the hydraulic system for system use. Through the interaction between the accumulator and the system circuit oil, the system pressure shock and pressure pulsation are effectively reduced.

[0003] The existing Chinese patent publication number is: CN217926493U, which discloses a welded diaphragm accumulator, which relates to the field of accumulators, including a shell, the shell includes an inner layer and an outer layer, a water storage chamber is arranged between the inner layer and the outer layer of the shell, a water outlet pipe is fixedly connected to one side of the top of the shell, the water outlet pipe is connected to the water storage chamber, a water inlet pipe is fixedly connected to one side of the bottom of the shell, the water inlet pipe is connected to the water storage chamber, a gas valve pipe is arranged on one side of the shell, the gas valve pipe is passed through the shell, one end of the gas valve pipe located in the shell is fixedly connected to an air bag, the air bag is connected to the gas valve pipe, and an oil valve is arranged on the other side of the shell. The present application heats the water in the water tank by a heating rod, and uses a water pump to pass hot water from a hose and a water inlet pipe into the water storage chamber, and discharges the hot water from the water inlet pipe. The hot water can heat the inside of the shell, which effectively solves the problem that when the accumulator is used in a cold environment, the oil is easy to solidify, thereby affecting the use of the accumulator.

[0004] The above-mentioned accumulator also has the following problems when in use: the above-mentioned hot water is dangerous when heating the accumulator shell. If the liquid leaks, the entire accumulator may be damaged, and the subsequent replacement cost is high.

[0005] Therefore, it is necessary to invent a diaphragm bladder accumulator to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a diaphragm bladder accumulator to solve the problem proposed in the above background technology that the hot water is dangerous when heating the accumulator shell, and if the liquid leaks, the entire accumulator may be damaged, resulting in high subsequent replacement costs.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm bladder accumulator, comprising an upper cavity, wherein the upper cavity, the middle cavity and the lower cavity are welded in sequence through butt joints, an air inlet is arranged at the top of the upper cavity, an oil valve is arranged at the bottom of the lower cavity, and a diaphragm is connected to the inside of the middle cavity through a fastener, an installation groove is opened inside the middle cavity, and an installation ring block is connected to the inside of the installation groove by a thread, and the installation ring block is fixedly connected to the heat transfer pad, and further comprises:

[0008] The heating assembly is used to ensure a constant temperature inside the accumulator body. A heating rod is fitted onto the side wall of the heat transfer pad, and a connecting block is fixedly connected to the end of the heating rod. A movable groove is provided inside the connecting block, and an engaging block is movably connected inside the movable groove, and one end of the engaging block matches the engaging groove, and the engaging groove is located inside the mounting ring block. A shift plate is fixedly connected to the other end of the engaging block, and the shift plate and the movable groove are movably connected via a set spring.

[0009] Preferably, there are two mounting ring blocks, which are symmetrically arranged up and down, and the top wall of the mounting ring block at the upper position is flush with the top of the middle cavity, and the bottom wall of the mounting ring block at the lower position is in contact with the bottom wall of the mounting groove, so that the heating component can be quickly installed.

[0010] Preferably, the heat transfer pad is in a circular shape, and the inner ring side wall of the circular heat transfer pad fits the inner wall of the mounting groove, and the upper and lower ends of the heat transfer pad are fixedly connected to two mounting ring blocks to facilitate the transfer of heat from the heating rod and ensure constant temperature inside the accumulator body.

[0011] Preferably, there are several heating rods, and the heating rods are distributed in a circular shape with equal angles, and are connected in series. The upper and lower ends of the heating rods are fixedly connected with connecting blocks, and the ends of the engaging blocks that are movably connected inside the connecting blocks are respectively matched with the engaging grooves reserved inside the upper and lower mounting ring blocks to ensure the detachability of the heating rods.

[0012] Preferably, the movable groove consists of a groove and an open notch connected to the groove, and the inner wall of the groove is in contact with and slidably connected to the outer wall of the engaging block, and the inner wall of the notch is in contact with and slidably connected to the side wall of the shift plate, so as to facilitate the shift plate to be moved through the notch.

[0013] Preferably, the two ends of the spring are fixedly connected to the outer wall of the shift plate and the inner wall of the movable groove respectively, so that the spring thrust pushes the engaging block to engage tightly with the engaging groove, thereby ensuring that the heating rod is firmly installed.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model heats the middle cavity by heating the heating rod, and the heat transfer pad transfers heat to keep the middle cavity at a constant temperature. In this way, the oil inside the accumulator will not solidify in cold weather, which will not affect the use of the accumulator. At the same time, hot water is not provided to heat the middle cavity, which prevents hot water leakage from affecting the subsequent use of the accumulator.

[0016] 2. When the heating rod needs to be replaced and repaired, remove the heating assembly by contact-moving the mounting ring block, and move the dial plates inside the connecting blocks on both sides of the heating rod toward each other to move the engaging blocks out of the engaging groove, and then the heating rod can be removed and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded view of the overall structure of the utility model;

[0020] Figure 3 It is an exploded view of the intermediate cavity (partially cut away) and the heating assembly of the utility model;

[0021] Figure 4 It is an exploded view of the connection structure between the heating component and the mounting ring block of the utility model;

[0022] Figure 5 It is an exploded view of the overall structure of the heating component of the present invention.

[0023] Description of reference numerals:

[0024] 1. Upper cavity; 2. Middle cavity; 3. Lower cavity; 4. Mounting groove; 5. Mounting ring block; 6. Heat transfer pad; 7. Heating assembly; 701. Heating rod; 702. Connecting block; 703. Movable groove; 7031. Groove; 7032. Notch; 704. Fitting block; 705. Switch plate; 706. Spring; 707. Fitting groove. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5A diaphragm bladder accumulator shown includes an upper cavity 1, the upper cavity 1, the middle cavity 2 and the lower cavity 3 are welded in sequence by butt joints, so that the accumulator has good air tightness of the bladder accumulator, the top of the upper cavity 1 is provided with an air inlet, the bottom of the lower cavity 3 is provided with an oil valve, and the middle cavity 2 is connected with a diaphragm through a fastener, the middle cavity 2 is provided with a mounting groove 4, and the mounting groove 4 is internally threadedly connected with a mounting ring block 5, and the mounting ring block 5 is fixedly connected to the heat transfer pad 6, and also includes:

[0027] The heating assembly 7 is used to ensure the constant temperature inside the accumulator body. A heating rod 701 is installed on the side wall of the heat transfer pad 6, and the end of the heating rod 701 is fixedly connected to a connecting block 702. A movable groove 703 is opened inside the connecting block 702, and the movable groove 703 is movably connected to a fitting block 704 inside, and one end of the fitting block 704 matches the fitting groove 707, and the fitting groove 707 is located inside the mounting ring block 5. The other end of the fitting block 704 is fixedly connected to a dial plate 705, and the dial plate 705 and the movable groove 703 are movably connected by a spring 706.

[0028] There are two mounting ring blocks 5, which are symmetrically arranged up and down, and the top wall of the mounting ring block 5 at the upper position is flush with the top of the middle cavity 2, and the bottom wall of the mounting ring block 5 at the lower position is in contact with the bottom wall of the mounting groove 4, so that the heating component 7 can be quickly installed.

[0029] The heat transfer pad 6 is annular in shape, and the inner side wall of the annular heat transfer pad 6 fits the inner wall of the mounting groove 4, and the upper and lower ends of the heat transfer pad 6 are fixedly connected to two mounting ring blocks 5, which facilitates the heat transfer of the heating rod 701 and ensures the constant temperature inside the accumulator body.

[0030] There are a number of heating rods 701, and the heating rods 701 are distributed in a ring shape with equal angles, and the heating rods 701 are connected in series. The upper and lower ends of the heating rod 701 are fixedly connected with connecting blocks 702, and the ends of the engaging blocks 704 that are movably connected inside the connecting blocks 702 are respectively matched with the engaging grooves 707 reserved inside the upper and lower mounting ring blocks 5 to ensure that the heating rod 701 is detachable.

[0031] The movable groove 703 is composed of a groove 7031 and an open notch 7032 connected to the groove 7031, and the inner wall of the groove 7031 is in contact with and slidably connected to the outer wall of the engaging block 704, and the inner wall of the notch 7032 is in contact with and slidably connected to the side wall of the shift plate 705, so that the shift plate 705 can be easily moved through the notch 7032.

[0032] The two ends of the spring 706 are fixedly connected to the outer wall of the shift plate 705 and the inner wall of the movable groove 703 respectively, so that the thrust of the spring 706 pushes the engaging block 704 and the engaging groove 707 to be tightly engaged, thereby ensuring that the heating rod 701 is firmly installed.

[0033] Working principle: When using a diaphragm bladder accumulator, firstly, it is heated by a plurality of heating rods 701 connected in series, and the heat is transferred through the heat transfer pad 6 to keep the middle cavity 2 at a constant temperature. At this time, the inside of the accumulator is kept at a constant temperature, which prevents the oil inside the accumulator from solidifying in cold weather, ensures the normal operation of the accumulator, and does not affect the use of the accumulator. At the same time, hot water is not set to heat the middle cavity 2, so as to avoid hot water leakage affecting the subsequent use of the accumulator;

[0034] When the heating rod 701 needs to be replaced and repaired, the upper cavity 1, the middle cavity 2 and the lower cavity 3 are disassembled, and the mounting ring block 5 is contact-type toggled so that the mounting ring block 5 together with the heating component 7 moves out of the mounting groove 4, and then the dial plates 705 inside the connecting blocks 702 on both sides of the heating rod 701 can be toggled toward each other, and the movement of the dial plates 705 drives the movement of the interlocking blocks 704 fixedly connected to the dial plates 705, and the interlocking blocks 704 move out of the interlocking groove 707, and the heating rod 701 can be removed and replaced. The overall operation is convenient and quick, and no liquid is used for heat preservation inside the accumulator, which reduces the safety hazard of leakage;

[0035] The upper cavity 1, the middle cavity 2 and the lower cavity 3 are welded in sequence through butt joints, so that the diaphragm accumulator also has good air tightness of the bladder accumulator.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A diaphragm bladder accumulator, comprising an upper chamber (1), characterized in that: The upper cavity (1), the middle cavity (2) and the lower cavity (3) are welded in sequence by butt joints, the top of the upper cavity (1) is provided with an air inlet, the bottom of the lower cavity (3) is provided with an oil valve, the inside of the middle cavity (2) is connected with a diaphragm by a fastener, the inside of the middle cavity (2) is provided with a mounting groove (4), the inside of the mounting groove (4) is threadedly connected with a mounting ring block (5), and the mounting ring block (5) is fixedly connected to a heat transfer pad (6), and further comprises: A heating assembly (7), wherein a heating rod (701) is fittedly mounted on the side wall of the heat transfer pad (6), and the end of the heating rod (701) is fixedly connected to a connecting block (702), a movable groove (703) is provided inside the connecting block (702), and a fitting block (704) is movably connected inside the movable groove (703), and one end of the fitting block (704) matches the fitting groove (707), and the fitting groove (707) is located inside the mounting ring block (5), and the other end of the fitting block (704) is fixedly connected to a dial plate (705), and the dial plate (705) and the movable groove (703) are movably connected via a spring (706).

2. A diaphragm bladder accumulator according to claim 1, characterized in that: The mounting ring blocks (5) are provided in two pieces in number. The two mounting ring blocks (5) are symmetrically arranged up and down, and the top wall of the mounting ring block (5) at the upper position is flush with the top of the middle cavity (2), and the bottom wall of the mounting ring block (5) at the lower position is in contact with the bottom wall of the mounting groove (4).

3. The diaphragm bladder accumulator according to claim 1, characterized in that: The heat transfer pad (6) is in the shape of a ring, and the inner side wall of the ring-shaped heat transfer pad (6) fits the inner wall of the mounting groove (4), and the upper and lower ends of the heat transfer pad (6) are fixedly connected to two mounting ring blocks (5).

4. The diaphragm bladder accumulator according to claim 1, characterized in that: The heating rods (701) are provided in a plurality, and the plurality of heating rods (701) are distributed in a circular shape at equal angles, and the plurality of heating rods (701) are connected in series, and the upper and lower ends of the heating rods (701) are fixedly connected to connecting blocks (702), and the ends of the engaging blocks (704) movably connected inside the connecting blocks (702) are matched with the engaging grooves (707) reserved inside the upper and lower mounting ring blocks (5), respectively.

5. The diaphragm bladder accumulator according to claim 1, characterized in that: The movable groove (703) is composed of a groove (7031) and an open notch (7032) connected to the groove (7031), and the inner wall of the groove (7031) is in contact with and slidably connected to the outer wall of the engaging block (704), and the inner wall of the notch (7032) is in contact with and slidably connected to the side wall of the shifting plate (705).

6. The diaphragm bladder accumulator according to claim 1, characterized in that: The two ends of the spring (706) are fixedly connected to the outer wall of the shifting plate (705) and the inner wall of the movable groove (703) respectively.

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