阅读说明：本技术 一种利用液体金属控制温度的压差发讯器 (Differential pressure signal transmitter utilizing liquid metal to control temperature ) 是由 胡振涛 崔桂平 胡莹莹 于 2021-01-28 设计创作，主要内容包括：本发明公开了一种利用液体金属控制温度的压差发讯器,包括壳体,所述壳体中下部和壳体下端中部分别开有过滤器进油口和过滤器出油口,所述壳体下端固定安装有弹簧座,所述弹簧座上部固定安装有下弹簧,所述下弹簧上端固定安装有下磁钢组件,所述壳体内部开有上腔体,所述上腔体内部设置有上磁钢组件,所述壳体上端设置有螺帽,所述螺帽中部设置有透明罩。本发明所述的一种利用液体金属控制温度的压差发讯器,通过利用不同的温度记忆合金有不同的相变温度,避免了误报警现象的出现；另外可利用低熔点合金金属的不同的熔点特性,不用调节就能得到例如0度,15°,30°,40°等不同的发讯温度,便于温度控制,省时省力。(The invention discloses a differential pressure signaling device for controlling temperature by utilizing liquid metal, which comprises a shell, wherein a filter oil inlet and a filter oil outlet are respectively formed in the middle lower part of the shell and the middle part of the lower end of the shell, a spring seat is fixedly arranged at the lower end of the shell, a lower spring is fixedly arranged at the upper part of the spring seat, a lower magnetic steel assembly is fixedly arranged at the upper end of the lower spring, an upper cavity is formed in the shell, an upper magnetic steel assembly is arranged in the upper cavity, a nut is arranged at the upper end of the shell, and a transparent cover is arranged in the middle. According to the differential pressure signal transmitter utilizing the liquid metal to control the temperature, the occurrence of the false alarm phenomenon is avoided by utilizing different phase transition temperatures of different temperature memory alloys; in addition, different signaling temperatures of 0 degree, 15 degrees, 30 degrees, 40 degrees and the like can be obtained without adjustment by utilizing different melting point characteristics of low-melting-point alloy metal, so that the temperature control is convenient, and the time and the labor are saved.)

1. A differential pressure transmitter for controlling temperature by means of liquid metal, comprising a housing (9), characterized in that: lower part and casing (9) lower extreme middle part have opened filter oil inlet (3) and filter oil-out (1) respectively in casing (9), casing (9) lower extreme fixed mounting has spring holder (2), spring holder (2) upper portion fixed mounting has lower spring (5), spring (5) upper end fixed mounting has lower magnetic steel component (6) down, casing (9) inside is opened has last cavity (7), go up inside magnetic steel component (12) that is provided with of cavity (7), casing (9) upper end is provided with nut (10), nut (10) middle part is provided with translucent cover (11), magnetic steel component (6) middle part and casing (9) surface lower part all are provided with No. one sealing washer (4) down, casing (9) surface middle part is provided with No. two sealing washers (8).

2. The differential pressure transmitter for controlling temperature using liquid metal of claim 1, wherein: go up magnetic steel component (12) upper end fixed mounting has red outer lane, go up magnetic steel component (12) and be located translucent cover (11) inside.

3. The differential pressure transmitter for controlling temperature using liquid metal of claim 1, wherein: the filter is characterized in that a lower cavity (13) is formed in the lower portion of the shell (9), the lower spring (5) is located inside the lower cavity (13), the interior of the filter oil inlet (3) is communicated with the interior of the upper cavity (7), and the interior of the filter oil outlet (1) is communicated with the interior of the lower cavity (13).

4. The differential pressure transmitter for controlling temperature using liquid metal of claim 1, wherein: the magnetic poles at the upper end of the lower magnetic steel component (6) are different from the magnetic poles at the lower end of the upper magnetic steel component (12).

5. The differential pressure transmitter for controlling temperature using liquid metal of claim 1, wherein: go up magnet steel subassembly (12) lower part fixed mounting has temperature memory alloy spring (14), temperature memory alloy spring (14) lower extreme and last cavity (7) lower extreme wall fixed connection.

6. The differential pressure transmitter for controlling temperature using liquid metal of claim 1, wherein: casing (9) upper portion fixed mounting has low melting point alloy metal (15), low melting point alloy metal (15) are located magnet steel component (12) middle part, go up magnet steel component (12) lower part fixed mounting and have last spring (16), go up spring (16) lower extreme and last cavity (7) lower extreme wall fixed connection.

Technical Field

The invention relates to the field of differential pressure transmitters, in particular to a differential pressure transmitter for controlling temperature by utilizing liquid metal.

Background

The differential pressure signal generator is arranged on the filter and is respectively communicated with the upstream pressure and the downstream pressure of the filter element, when no fluid flows through the filter, the lower magnetic steel component is close to the upper part of the shell under the pressure action of the lower spring,

through opposite attraction of the magnetic steel, the upper magnetic steel component overcomes the pressure of the upper spring and falls below the upper cavity of the annunciator, the outer circle of the upper magnetic steel component is red, and the red outer circle cannot be seen through the transparent cover. Because the fluid makes and has the flow resistance through the filter core, so upstream pressure is greater than the low reaches pressure, and the last low reaches pressure differential of effect on magnet steel assembly under overcomes the elasticity of spring and moves down, and along with lower magnet steel keeps away from last magnet steel assembly, its mutual suction reduces, goes up magnet steel assembly and upwards plays under the elastic force of last spring, observes magnet steel assembly excircle on red in the translucent cover this moment, forms signaling warning. The existing differential pressure signal transmitter often has the following problems in the use process: 1. the existing differential pressure transmitter is very easy to generate false alarm phenomenon in low temperature environment, which causes error of the transmission alarm, 2, the existing differential pressure transmitter is not easy to control the temperature adjustment, the temperature needs to be given a larger temperature range, the adjustment is inconvenient, time and labor are wasted, and the rejection rate is high.

Disclosure of Invention

The invention mainly aims to provide a differential pressure signal transmitter for controlling temperature by utilizing liquid metal, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an utilize liquid metal temperature control's pressure differential signaling apparatus, includes the casing, lower part and casing lower extreme middle part have opened filter oil inlet and filter oil-out respectively in the casing, casing lower extreme fixed mounting has the spring holder, spring holder upper portion fixed mounting has lower spring, lower spring upper end fixed mounting has lower magnetic steel assembly, the inside cavity of having opened of casing, go up the inside magnetic steel assembly that is provided with of cavity, the casing upper end is provided with the nut, the nut middle part is provided with the translucent cover, magnetic steel assembly middle part and casing surface lower part all are provided with the sealing washer No. one down, casing surface middle part is provided with the sealing washer No. two.

Preferably, the upper end of the upper magnetic steel component is fixedly provided with a red outer ring, and the upper magnetic steel component is positioned inside the transparent cover.

Preferably, the lower cavity is formed in the lower portion of the shell, the lower spring is located inside the lower cavity, the inside of the oil inlet of the filter is communicated with the inside of the upper cavity, and the inside of the oil outlet of the filter is communicated with the inside of the lower cavity.

Preferably, the magnetic poles at the upper end of the lower magnetic steel component are different from the magnetic poles at the lower end of the upper magnetic steel component.

Preferably, a temperature memory alloy spring is fixedly mounted on the lower portion of the upper magnetic steel component, and the lower end of the temperature memory alloy spring is fixedly connected with the lower end wall of the upper cavity.

Preferably, casing upper portion fixed mounting has low-melting point alloy metal, low-melting point alloy metal is located last magnetic steel assembly middle part, go up magnetic steel assembly lower part fixed mounting has the spring, go up spring lower extreme and last cavity lower end wall fixed connection.

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, the memory alloy with different temperatures has different phase transition temperatures, such as-15 degrees, 30 degrees, 37 degrees, 45 degrees and high temperature of 80-100 degrees, and the memory alloy spring is in a soft state when the temperature is lower than the temperature, so that the upper magnetic steel component cannot bounce under the action of the memory alloy spring to send signals even if the differential pressure signal sender reaches the signal sending pressure. Only when the phase transition temperature of the memory alloy is reached or is higher than the phase transition temperature of the memory alloy, the spring recovers elasticity, the upper magnetic steel component is bounced when the differential pressure signal transmitter reaches the signal transmitting pressure, signal transmission is carried out, and the phenomenon of false alarm is avoided.

(2) According to the invention, different signaling temperatures such as 0 ℃, 15 ℃, 30 ℃, 40 ℃ and the like can be obtained without adjustment by utilizing different melting point characteristics of low-melting-point alloy metal, so that the device is convenient to use and control the temperature, and is time-saving and labor-saving.

Drawings

FIG. 1 is a schematic structural diagram of a differential pressure transmitter for controlling temperature by liquid metal according to a first embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of the differential pressure transmitter for controlling temperature by liquid metal according to the present invention;

FIG. 3 is a schematic structural diagram of a second embodiment of a differential pressure transmitter for controlling temperature by liquid metal according to the present invention;

FIG. 4 is an enlarged view of the differential pressure transmitter using liquid metal to control temperature in FIG. 3.

In the figure: 1. a filter oil outlet; 2. a spring seat; 3. an oil inlet of the filter; 4. a first sealing ring; 5. a lower spring; 6. a lower magnetic steel component; 7. an upper cavity; 8. a second sealing ring; 9. a housing; 10. a nut; 11. a transparent cover; 12. an upper magnetic steel component; 13. a lower cavity; 14. a temperature memory alloy spring; 15. a low melting point alloy metal; 16. and (4) spring loading.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical scheme of the invention is further explained by combining the attached drawings.

Example one

The utility model provides an utilize pressure differential signaling apparatus of liquid metal control temperature, as shown in fig. 1-2, including casing 9, filter oil inlet 3 and filter oil-out 1 have been opened respectively to casing 9 middle and lower extreme middle part of casing 9, casing 9 lower extreme fixed mounting has spring holder 2, 2 upper portion fixed mounting of spring holder has lower spring 5, 5 upper end fixed mounting of lower spring has lower magnet steel assembly 6, casing 9 is inside to be opened has last cavity 7, go up inside magnet steel assembly 12 that is provided with of cavity 7, casing 9 upper end is provided with nut 10, nut 10 middle part is provided with translucent cover 11, lower magnet steel assembly 6 middle part and casing 9 surface lower part all are provided with sealing washer 4 No. one, casing 9 surface middle part is provided with sealing washer 8 No. two.

The upper end of the upper magnetic steel component 12 is fixedly provided with a red outer ring, the upper magnetic steel component 12 is positioned in the transparent cover 11, and the outer circle of the red upper magnetic steel component 12 in the transparent cover 11 is observed to judge and form signaling alarm; the lower part of the shell 9 is provided with a lower cavity 13, the lower spring 5 is positioned in the lower cavity 13, the interior of the oil inlet 3 of the filter is communicated with the interior of the upper cavity 7, the interior of the oil outlet 1 of the filter is communicated with the interior of the lower cavity 13, and fluid can conveniently pass through the interior of the filter; the magnetic pole at the upper end of the lower magnetic steel component 6 is different from the magnetic pole at the lower end of the upper magnetic steel component 12, and the upper magnetic steel component 12 is convenient to fall below the upper cavity 7 of the annunciator by overcoming the pressure of the temperature memory alloy spring 14 through the opposite attraction of the magnetic steels; the lower part of the upper magnetic steel component 12 is fixedly provided with a temperature memory alloy spring 14, and the lower end of the temperature memory alloy spring 14 is fixedly connected with the lower end wall of the upper cavity 7.

This embodiment is in concrete use, an utilize liquid metal control temperature's pressure differential signaling apparatus, adopt different temperature memory alloy, utilize different temperature memory alloy to have different phase transition temperature, it is common to have-15, 30, 37, 45, high temperature 80~100 remember alloy spring and be in soft attitude when the temperature is less than these temperatures, even pressure differential signaling apparatus reaches signaling pressure, go up magnet steel assembly 12 and also can't bounce under memory alloy spring's effect and send a news. Only when the phase transition temperature of the memory alloy is reached or is higher than the phase transition temperature of the memory alloy, the spring recovers elasticity, and the upper magnetic steel component 12 is bounced up when the differential pressure signaling device reaches signaling pressure to signal, so that the occurrence of false alarm is avoided.

Example two

The utility model provides an utilize pressure differential signaling apparatus of liquid metal control temperature, as shown in fig. 3-4, including casing 9, filter oil inlet 3 and filter oil-out 1 have been opened respectively to casing 9 middle and lower extreme middle part of casing 9, casing 9 lower extreme fixed mounting has spring holder 2, 2 upper portion fixed mounting of spring holder has lower spring 5, 5 upper end fixed mounting of lower spring has lower magnet steel assembly 6, casing 9 is inside to be opened has last cavity 7, go up inside magnet steel assembly 12 that is provided with of cavity 7, casing 9 upper end is provided with nut 10, nut 10 middle part is provided with translucent cover 11, lower magnet steel assembly 6 middle part and casing 9 surface lower part all are provided with sealing washer 4 No. one, casing 9 surface middle part is provided with sealing washer 8 No. two.

The upper end of the upper magnetic steel component 12 is fixedly provided with a red outer ring, the upper magnetic steel component 12 is positioned in the transparent cover 11, and the outer circle of the red upper magnetic steel component 12 in the transparent cover 11 is observed to judge and form signaling alarm; the lower part of the shell 9 is provided with a lower cavity 13, the lower spring 5 is positioned in the lower cavity 13, the interior of the oil inlet 3 of the filter is communicated with the interior of the upper cavity 7, the interior of the oil outlet 1 of the filter is communicated with the interior of the lower cavity 13, and fluid can conveniently pass through the interior of the filter; the magnetic pole at the upper end of the lower magnetic steel component 6 is different from the magnetic pole at the lower end of the upper magnetic steel component 12, and the upper magnetic steel component 12 is convenient to fall below the upper cavity 7 of the annunciator by overcoming the pressure of the upper spring 16 through the opposite attraction of the magnetic steels; the upper part of the shell 9 is fixedly provided with low-melting-point alloy metal 15, the low-melting-point alloy metal 15 is positioned in the middle of the upper magnetic steel component 12, the lower part of the upper magnetic steel component 12 is fixedly provided with an upper spring 16, and the lower end of the upper spring 16 is fixedly connected with the lower end wall of the upper cavity 7.

In the specific use process of the embodiment, the pressure difference signal transmitter utilizing the liquid metal to control the temperature adopts the low-melting-point alloy metal 15, utilizes different melting point characteristics of the low-melting-point alloy metal 15, can obtain different signal transmitting temperatures such as 0 degree, 15 degrees, 30 degrees, 40 degrees and the like without adjustment, and has the advantages of high precision and convenient use.

In the above embodiment, the pressure difference signal generator is installed on the filter, when the fluid flows through the filter, the filter element in the filter is gradually blocked due to the interception of pollutants in the system, so that the pressure difference between the inlet and the outlet is generated, namely the pressure loss of the filter element, and when the pressure difference value is increased to the set value of the signal generator, the signal generator automatically sends a signal to indicate that the operator of the system needs to clean or replace the filter element, thereby ensuring the safe operation of the system. The viscosity of general liquid is great when low temperature environment, the flow resistance that corresponds is also big more, make the liquid differential pressure value of flowing through the filter reach signaling pressure, but the filter core at this moment is not because the pollutant blocks up and sends a news, what produce is wrong alert signal, in order to avoid wrong alert, utilize different temperature memory alloy to have different phase transition temperatures, it has-15 commonly, 30, 37, 45, high temperature 80~100, when the temperature is less than these temperatures, the memory alloy spring is in soft state, even the differential pressure signaling device reaches signaling pressure, go up magnetic steel assembly 12 and also can't bounce under memory alloy spring's effect and send a news. Only when the phase transition temperature of the memory alloy is reached or is higher than the phase transition temperature of the memory alloy, the spring recovers elasticity, and the upper magnetic steel component 12 is bounced up when the differential pressure signaling device reaches signaling pressure to signal, so that the occurrence of false alarm is avoided. In addition, different transmission temperatures of 0 ℃, 15 ℃, 30 ℃, 40 ℃ and the like can be obtained without adjustment by utilizing different melting point characteristics of the low-melting-point alloy metal 15, and the precision is convenient to use.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.