Temperature early warning device and temperature early warning intelligent balance valve

Abstract

The utility model relates to a temperature early warning device and a temperature early warning intelligent balance valve, and belongs to the technical field of heating intelligent balance valves. The temperature alarm device comprises a mounting shell, a cavity is formed in the mounting shell along the axis, the cavity is provided with an opening in the top end of the mounting shell, a bimetal temperature sensing switch, a button battery and a light-emitting lamp tube which are electrically connected are arranged in the cavity of the mounting shell, the temperature sensing switch is arranged on the bottom side of the cavity in the axial direction, and the button battery is electrically connected with the light-emitting lamp tube. And the light-emitting lamp tube is fixed at the opening at the top end of the cavity. The temperature early warning device is arranged in the flange of the intelligent balance valve, temperature changes in the welding and assembling process of the intelligent balance valve are detected in real time, and when the temperature is too high, flashing alarm service is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of heating intelligent balancing valves, and in particular to a temperature early warning device and a temperature early warning intelligent balancing valve. Background Art

[0002] The heating intelligent balancing valve is a functional valve with good flow characteristics, valve opening indication, measurement and adjustment functions, and remote control functions. The valve body and actuator of the heating intelligent balancing valve are directly connected. The actuator has a built-in control system and rechargeable power supply, and has wireless controllability at long and short distances. A temperature sensor is set on the valve body to detect the water supply temperature in real time. The temperature sensor signal is connected to the control system of the actuator, and the valve body opening is controlled through the actuator to adjust the heating temperature.

[0003] The structural types of heating intelligent balancing valves are divided into floating type and fixed type; the sealing materials are generally: PTFE (polytetrafluoroethylene), nitrile rubber, fluororubber, PPL (para-polyphenylene), etc. In the actual installation process of heating intelligent balancing valves, the installation site is mostly at high altitude or high platform, pipeline well, manhole, corridor, pump room and other places, which is difficult to construct. The heating intelligent balancing valve and pipeline need to be constructed and installed at the same time. Because the construction needs to be installed and welded to the connecting flange, there is a situation where the valve body is heated up sharply simultaneously with the welding operations such as flange pipelines. At the same time, in the actual construction work, due to the difficulty of construction, it is difficult to avoid the situation that the staff wants to save time and effort, resulting in non-standard operation. For example, the valve body is connected and fixed first and then the pipeline flange is welded. This will inevitably cause high temperature to the valve body. When the temperature is too high, it will cause changes in the materials such as the valve body's seals and filling seals, thereby affecting the performance and normal use of the valve body. Utility Model Content

[0004] In order to solve the problems in the prior art, this utility model patent designs a temperature warning device and a temperature warning intelligent balancing valve to solve the problem that the sealing mechanism of the valve body of the existing heating intelligent balancing valve fails due to excessive temperature during welding operation during installation.

[0005] The technical solution adopted by the utility model is: a temperature warning device, which includes a mounting shell, a cavity is arranged inside the mounting shell along the axis, the cavity is opened at the top end of the mounting shell, and an electrically connected bimetallic temperature switch, a button battery and a light-emitting lamp are arranged in the cavity of the mounting shell, the temperature switch is arranged on the bottom side of the cavity along the axial direction, and the light-emitting lamp is fixed at the top end opening of the cavity.

[0006] Furthermore, the lower part of the bimetallic temperature switch passes through the bottom end of the mounting shell, and a sheath is provided on the outer side thereof.

[0007] Furthermore, the internal cavity of the mounting shell is divided into two chambers by a partition, namely a temperature switch chamber and a battery chamber. The bimetallic temperature switch is arranged in the temperature switch chamber, and the button battery is arranged in the battery chamber.

[0008] Furthermore, the mounting shell has a bolt-like appearance, and an external thread is arranged on the outer side thereof.

[0009] The utility model patent also provides a temperature warning intelligent balancing valve, which includes a valve body, a temperature sensor is arranged on the tube neck on one side of the valve body, the temperature sensor is inserted into the through cavity of the valve body, and the connecting flanges on both sides of the valve body are respectively radially provided with connecting holes with internal threads, the inner diameter of the connecting hole is adapted to the outer diameter of the mounting shell of the temperature warning device as described above, and the temperature warning device is respectively threadedly connected to the connecting holes on both sides of the valve body.

[0010] Furthermore, the connection hole is filled with thermal grease on the outside of the sheath at the lower part of the temperature warning device.

[0011] Furthermore, a ring-shaped groove is formed on the bottom surface of the nut on the top of the mounting shell, and a sealing ring is arranged in the groove.

[0012] Compared with the prior art, the advancement of a temperature warning device and a temperature warning intelligent balancing valve designed by the utility model patent lies in that the alarm mechanism of the temperature warning device is composed of an electrically connected bimetallic temperature switch, a button battery and a light-emitting lamp. When the bimetallic temperature switch is working normally, the two metal sheets are in a free state and the contacts are in a disconnected state. When the temperature rises to the action temperature value, due to the different thermal expansion coefficients of the two different alloys, the bimetallic element generates internal stress due to heat and quickly acts, and the contacts change from normally open to closed, connecting the circuit, thereby lighting up the light-emitting lamp and serving as a warning; when the temperature drops to the reset temperature, the two metal sheets cool and shrink, the contacts automatically disconnect, returning to normal, and the light-emitting lamp goes out, thereby realizing the warning effect of temperature control. By drilling a hole on the connecting flange of the balancing valve to install a temperature warning device, the temperature change during the installation welding process can be detected immediately, and a warning can be issued before the high temperature is transmitted to the sealing structure at the valve core, thereby preventing the high temperature during the installation welding process from damaging the sealing structure of the valve body; moreover, when the temperature warning device is connected, the connecting hole is filled with thermal conductive silicone grease on the outside of the bimetallic temperature switch, which can quickly transfer heat and ensure the sensitivity of the temperature warning device's detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a temperature early warning device.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the temperature early warning device.

[0015] Figure 3 It is a structural diagram of a temperature warning intelligent balancing valve.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the temperature warning intelligent balancing valve.

[0017] In the figure, 1 is a mounting shell, 2 is a light-emitting lamp, 3 is a button battery, 4 is a bimetallic temperature switch, 5 is a sheath, 6 is a valve body, 7 is a temperature sensor, 11 is a temperature switch cavity, 12 is a battery cavity, 13 is an external thread, 61 is a connecting flange, 62 is a tube neck, 63 is a connecting hole, and 64 is a thermal grease. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the utility model are clearly and completely described, and the described embodiments are only embodiments of a part of the invention, not all of it. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention. Example 1

[0019] like Figure 1 , 2 As shown, the utility model patent designs an embodiment of a temperature warning device. In this embodiment, the temperature alarm device includes a mounting shell 1. The mounting shell 1 is in the shape of a bolt, and its outer surface is provided with an external thread 13, and a cavity is arranged inside along the axis. The cavity runs through the mounting shell 1, and the inner diameter of the top opening is smaller than the inner diameter of the lower part of the cavity. A partition is arranged on the inner side of the lower part of the cavity, which divides the cavity into a temperature switch cavity 11 and a battery cavity 12. A temperature alarm mechanism is arranged in the cavity of the mounting shell 1, and the temperature alarm mechanism includes an electrically connected bimetallic temperature switch 4, a button battery 3 and a light-emitting lamp 2. The bimetallic temperature switch 4 is axially arranged in the temperature switch cavity 11, and its length is greater than the length of the temperature switch cavity 11. The lower part of the bimetallic temperature switch 4 is exposed outside the mounting shell 1, and a sheath 5 is arranged on the outer side thereof, and the sheath 5 is integrally plugged into the temperature switch cavity 11. The button battery 3 is installed and fixed in the battery cavity 11, and the light-emitting lamp 2 is fixed at the top opening of the cavity in a sealed manner and connected in series with the button battery 3 and the bimetallic temperature switch 4 through a power connection line.

[0020] When the temperature alarm mechanism is at normal temperature, the bimetallic strip of the bimetallic temperature switch 4 is in a free state and the contact is in a disconnected state. When the temperature rises to the operating temperature value, since the bimetallic strips of the bimetallic temperature switch 4 are two different alloys with different thermal expansion coefficients, the bimetallic strips generate internal stress when heated and quickly operate, and the contact changes from normally open to closed, connecting the circuit, thereby lighting up the light tube 2; when the temperature drops to the reset temperature, the bimetallic strip contacts automatically disconnect, and the light tube 2 goes out. Example 2

[0021] like Figure 3 , 4 As shown, the utility model patent designs an embodiment of a temperature warning intelligent balancing valve. In this embodiment, the balancing valve includes a valve body 6. A perforation is radially opened on the upper side of a tube neck 62 on one side of the valve body 6. A temperature sensor 7 is sealed and fixedly installed in the perforation. The temperature sensor 7 is inserted downward into the through cavity of the valve body 6 to detect the temperature of the water flowing through the through cavity of the valve body. The top of the outer peripheral surface of the connecting flange 61 on both sides of the valve body 6 is radially opened with an internal threaded connecting hole 63. The inner diameter of the connecting hole 63 is adapted to the outer diameter of the mounting shell 1 of the temperature warning device described in Example 1. The internal thread of the connecting hole 63 is also adapted to the size of the external thread 13 of the mounting shell 1. The temperature warning device described in Example 1 is threadedly connected in the connecting holes 62 of the connecting flange 61 on both sides of the valve body 6. When the temperature warning device is installed, the connecting hole 62 on the outer side of the sheath 5 at the lower part is filled with thermal conductive silicone grease 64. Thermal grease 64 is a highly thermally conductive insulating silicone material that is almost never solidified and can maintain a grease state for a long time at a temperature of -50°C to +230°C. In addition, a ring-shaped groove is formed on the bottom surface of the nut on the top of the mounting housing 1, and a sealing ring is provided in the groove to seal the connection surface of the temperature warning device.

[0022] The temperature warning intelligent balancing valve disclosed in this utility model patent will detect the high temperature generated during the installation and construction of pipelines and flanges in real time when welding is required. When the temperature transmitted to the valve body reaches the trigger temperature of the bimetallic temperature switch, the light-emitting lamp of the temperature warning device will be powered on to light up and start the warning function. This solves many problems caused by high temperature in the actual on-site construction process to the safety performance and normal use function of the intelligent balancing valve.

[0023] The above contents are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A temperature early warning device, characterized in that: The temperature warning device includes an installation shell, a cavity is arranged inside the installation shell along the axis, the cavity is opened at the top end of the installation shell, and an electrically connected bimetallic temperature switch, a button battery and a light-emitting lamp are arranged in the cavity of the installation shell. The bimetallic temperature switch is arranged axially on the bottom side of the cavity, and the light-emitting lamp is fixed at the top opening of the cavity.

2. A temperature warning device according to claim 1, characterized in that: The lower part of the bimetallic temperature switch passes through the bottom end of the mounting shell, and a sheath is arranged on the outer side thereof.

3. A temperature warning device according to claim 2, characterized in that: The internal cavity of the mounting shell is divided into two chambers by a partition, namely a temperature switch chamber and a battery chamber. The bimetallic temperature switch is arranged in the temperature switch chamber, and the button battery is arranged in the battery chamber.

4. A temperature warning device according to claim 3, characterized in that: The mounting shell has a bolt-like shape, and an external thread is arranged on the outer side thereof.

5. A temperature warning intelligent balancing valve, characterized in that: The balancing valve includes a valve body, a temperature sensor is arranged on the tube neck on one side of the valve body, the temperature sensor is inserted into the through cavity of the valve body, and the connecting flanges on both sides of the valve body are respectively radially provided with connecting holes with internal threads, the inner diameter of the connecting holes is adapted to the outer diameter of the mounting shell of the temperature warning device described in claim 4, and the temperature warning device described in claim 4 is respectively threadedly connected to the connecting holes on both sides of the valve body.

6. The temperature warning intelligent balancing valve according to claim 5 is characterized in that: The connection hole is filled with thermal conductive silicone grease on the outer side of the sheath at the lower part of the temperature early warning device.

7. The temperature warning intelligent balancing valve according to claim 6 is characterized in that: The bottom surface of the nut on the top of the mounting shell of the temperature warning device is provided with an annular groove, and a sealing ring is arranged in the groove.

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