Gas relay with automatic exhaust function

Abstract

The utility model discloses a gas relay with an automatic exhaust function, which comprises a monitoring box body and a first connecting flange, the top end of the first connecting flange is in threaded connection with a second connecting flange through a plurality of bolts, and the top end of the second connecting flange is fixedly connected with a relay shell. A connecting mechanism and a monitoring mechanism are respectively arranged above and inside the relay shell, the gas relay relates to the technical field of gas relays, a turncap of the automatic exhaust valve can be screwed down clockwise and then unscrewed by a half circle or a circle anticlockwise, so that the automatic exhaust debugging of the automatic exhaust valve is completed, and when the automatic exhaust valve is opened, the automatic exhaust valve can be opened and closed. The relay can be used after the oil injection plug is taken down, oil is injected into the relay shell according to the standard, then the oil injection plug is installed and the automatic exhaust valve is closed, so that when gas appears in the box body is monitored, the pressure valve is matched with the automatic exhaust valve to realize automatic exhaust, and the oil level returns to a normal state.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas relay technical field, concretely is a kind of gas relay with automatic exhaust function. BACKGROUND

[0002] Gas relay is the important safety protection device on oil-immersed transformer, it is installed on the joint pipe of transformer tank cover and oil conservator, under the action of gas or oil flow generated in transformer internal fault, it sends signal or tripping circuit, makes relevant device send alarm signal or makes transformer cut off from power grid, reaches the effect of protecting transformer.But, the gas relay in prior art, since it does not have the function of exhaust, when equipment runs, the gas generated will force the oil surface monitored to drop, resulting in that relay will send false alarm signal, so that actual use effect is not good. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a kind of gas relay with automatic exhaust function, solve the problem that the gas relay in prior art, since it does not have the function of exhaust, when equipment runs, the gas generated will force the oil surface monitored to drop, resulting in that relay will send false alarm signal.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of gas relay with automatic exhaust function, including monitoring box and first connecting flange, the top of the monitoring box is welded with first connecting flange, the top of the first connecting flange is connected with the second connecting flange by a plurality of bolts, the top of the second connecting flange is fixed with relay shell, the top of the relay shell is fixed with pressure valve, the top of the pressure valve is installed with automatic exhaust valve, the top and inside of the relay shell are installed with connecting mechanism and monitoring mechanism respectively.

[0005] Preferably, the connecting mechanism includes the outlet box fixed to the top of the relay shell, and the front end of the outlet box is processed with the outlet port, the top of the relay shell is fixed with the injection probe, the top of the outlet box is fixed with a pair of cut-off signal terminals and alarm signal terminals, and the top of the relay shell is provided with an oil injection plug at the oil injection hole.

[0006] Preferably, the monitoring mechanism includes the T-shaped guide rod assembly fixed to the top inner wall of the relay shell, the T-shaped guide rod assembly is connected with the dry reed support below, the bottom of the dry reed support is connected with the annular magnet, and the bottom of the annular magnet is connected with the float, and the outer wall of the float is respectively matched with the gap of the first connecting flange, the second connecting flange and the opening inner wall of the monitoring box.

[0007] The two ends of the dry reed support are respectively connected with a pull fork and a plurality of dry reed contact points, and the end of the pull fork away from the dry reed support is connected with a probe.

[0008] Preferably, the front end face of the relay shell is provided with a viewing window.

[0009] Preferably, the outer wall of the viewing window is processed with a scale line.

[0010] Beneficial effects

[0011] The utility model provides a gas relay with automatic exhaust function possesses following beneficial effects:

[0012] Can pass through the relay shell drive second connecting flange and float etc. Move, make the float pass through the first connecting flan and the opening of monitoring box body, again through bolt, fix second connecting flange on the first connecting flan, after connecting the external power supply etc. of this device, again unscrew the dust cover on the probe top, press down the probe slowly, will send alarm signal and cut-off signal in turn, to this to carry out preliminary debugging, after the screw cap of automatic exhaust valve is first tightened clockwise, then loosens half a circle or a circle counterclockwise, to this completes the automatic exhaust valve automatic deflation debugging, when opening the automatic exhaust valve, can take down the oil filler, press the standard oil in the relay shell, after installing the oil filler, closes the automatic exhaust valve and can use, when the gas appears in the monitoring box body, the pressure valve cooperates the automatic exhaust valve and can realize automatic exhaust, restores normal state to oil level. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structural schematic diagram of the utility model.

[0014] Fig. 2 It is the sectional view of the utility model.

[0015] Fig. 3 It is the plan view of the utility model.

[0016] In the drawing: 1, monitoring box body;2, first connecting flange;3, bolt;4, second connecting flange;5, relay shell;6, pressure valve;7, outlet box;8, outlet;9, cut-off signal terminal;10, alarm signal terminal;11, probe;12, oil filler;13, T type guide rod assembly;14, dry reed support;15, ring magnet;16, float;17, pull fork;18, dry reed contact point;19, viewing window;20, scale line;21, automatic exhaust valve. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the present utility model.

[0018] Please refer to Figs. 1-3 The present utility model provides a technical scheme: a gas relay with automatic exhaust function, including monitoring box body 1 and first connecting flange 2, the top of monitoring box body 1 is welded with first connecting flange 2, the top of first connecting flange 2 is screwed with second connecting flange 4 through a plurality of bolts 3, the top of second connecting flange 4 is fixedly connected with relay shell 5, the top of relay shell 5 is fixedly connected with pressure valve 6, the top of pressure valve 6 is installed with automatic exhaust valve 21, the upper side and inner side of relay shell 5 are respectively installed with connecting mechanism and monitoring mechanism.

[0019] The pressure valve 6 can be installed at the top of relay shell 5, an automatic exhaust valve 21 is installed on the pressure valve 6, the pressure value of pressure valve 6 is 0.05 to 0.1Mp, so when gas appears in monitoring box body 1 and the gas pressure exceeds the pressure value of pressure valve 6, the valve core and spring in pressure valve 6 will cooperate to be in the open state, and then cooperate with automatic exhaust valve 21 to realize automatic exhaust, so that the oil surface returns to the normal state, when the gas pressure value is less than the pressure value at pressure valve 6, pressure valve 6 is in the closed state, and the automatic exhaust valve 21 can also be removed, and pressure valve 6 is used for exhaust, and openings are processed on monitoring box body 1, first connecting flange 2 and second connecting flange 4, so that the float 16 passes through, and a sealing ring can be arranged between first connecting flange 2 and second connecting flange 4 to realize sealing.

[0020] The present embodiment is further provided with connecting mechanism, including the outgoing line box 7 that is fixedly connected with the top of relay shell 5, and outgoing line box 7's front end is processed with outgoing line port 8, the top of relay shell 5 is fixedly connected with probe 11, the top of outgoing line box 7 is fixedly connected with a pair of cut-off signal terminal 9 and alarm signal terminal 10, the top of relay shell 5 is configured with oil injection plug 12 at oil injection hole;

[0021] The bottom end of the probe 11 penetrates into the relay housing 5 to be connected with the pull fork 17. An oil injection hole is arranged at the top end of the relay housing 5 to facilitate oil injection. An oil injection plug 12 is arranged at the oil injection hole to realize sealing. The probe can be used to test the action characteristics. For example, the dust cover on the top of the probe is first unscrewed, and then the probe is slowly pressed. In combination with the cut-off signal terminal 9 and the alarm signal terminal 10, the alarm signal and the cut-off signal will be sequentially sent. This is the prior art, and those skilled in the art can fully realize it, so it will not be described in more detail.

[0022] The monitoring mechanism further comprises a T-shaped guide rod assembly 13 fixed to the inner wall of the top end of the relay housing 5. The T-shaped guide rod assembly 13 is connected with a dry reed support 14 below. The bottom end of the dry reed support 14 is connected with a ring-shaped magnet 15, and the bottom end of the ring-shaped magnet 15 is connected with a float 16. The outer wall of the float 16 is matched with the inner wall gap of the opening of the first connecting flange 2, the second connecting flange 4 and the monitoring box 1, respectively.

[0023] When the float 16 moves, the ring-shaped magnet 15 can be moved at the dry reed support 14, so as to realize the touch and disconnection of the ring-shaped magnet 15 and the pull fork 17.

[0024] The two ends of the dry reed support 14 are respectively connected with the pull fork 17 and a plurality of dry reed contacts 18. The end of the pull fork 17 away from the dry reed support 14 is connected with the probe 11.

[0025] The front end surface of the relay housing 5 is provided with a viewing window 19.

[0026] The outer wall of the viewing window 19 is processed with a scale line 20.

[0027] It is worth noting that the electrical appliance structures and the like involved in the present application can be selected according to the needs of the users, as long as they meet the use requirements of the present application. The corresponding control circuit and the like are also prior art, and those skilled in the art can fully realize them, so they will not be described in more detail.

[0028] Through the connection of the parts in the art by those skilled in the art, the specific connection and operation sequence should be referred to the working principle described below. The detailed connection means is a well-known technology in the art, and the working principle and process are mainly introduced below.

[0029] When the device needs to be used, the second connecting flange 4 and the float 16 can be moved by the relay shell 5, the float 16 passes through the opening of the first connecting flange 2 and the monitoring box 1, the second connecting flange 4 is fixed to the first connecting flange 2 through the bolt 3, then the external power supply of the device is connected, the dust cover on the probe 11 is unscrewed, the probe 11 is slowly pressed down, and alarm signals and tripping signals are sequentially sent to carry out preliminary debugging, then the cap of the automatic exhaust valve 21 is screwed clockwise, and then is unscrewed counterclockwise by half a turn or one turn, so that the automatic exhaust valve 21 is automatically adjusted, when the automatic exhaust valve 21 is opened, the oil filling plug 12 can be removed, the inside of the relay shell 5 is filled with standard oil, then the oil filling plug 12 is installed, the automatic exhaust valve 21 is closed, and the device can be used, so that when gas appears in the monitoring box 1, the pressure valve 6 cooperates with the automatic exhaust valve 21 to realize automatic exhaust, so that the oil surface returns to the normal state, if the oil surface in the monitoring box 1 is lowered due to oil shortage or other reasons, the float 16 will be displaced, the annular magnet 15 connected with the float 16 will be in contact with the pull fork 17, so that the tripping signal terminal 9 and the alarm signal terminal 10 of the relay shell 5 cooperate with the probe 11 to send an alarm signal, if the oil surface continues to decrease, the device will send a trip signal and trip, so that the actual use effect is better.

[0030] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement "includes one of A and B" does not foreclose the existence of other elements or the inclusion of elements that are not expressly listed or inherent to the process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas relay with automatic exhaust function, comprising a monitoring box body (1) and a first connecting flange (2), the top end of the monitoring box body (1) is welded with the first connecting flange (2), characterized in that: The top end of the first connecting flange (2) is threadedly connected with a second connecting flange (4) through a plurality of bolts (3), the top end of the second connecting flange (4) is fixedly connected with a relay shell (5), the top end of the relay shell (5) is fixedly connected with a pressure valve (6), the top end of the pressure valve (6) is mounted with an automatic exhaust valve (21), the upper and inner sides of the relay shell (5) are respectively mounted with a connecting mechanism and a monitoring mechanism.

2. The gas relay having an automatic exhaust function according to claim 1, characterized by, The connecting mechanism comprises a wire outlet box (7) fixedly connected with the top end of the relay shell (5), the front end of the wire outlet box (7) is processed with a wire outlet (8), the top end of the relay shell (5) is fixedly connected with a probe (11), the top end of the wire outlet box (7) is fixedly connected with a pair of cut-off signal terminals (9) and alarm signal terminals (10), and the top end of the relay shell (5) is provided with an oil injection plug (12) at an oil injection hole.

3. The gas relay having an automatic exhaust function according to claim 1, characterized by, The monitoring mechanism comprises a T-shaped guide rod assembly (13) fixedly connected with the inner wall of the top end of the relay shell (5), the lower side of the T-shaped guide rod assembly (13) is connected with a dry reed support (14), the bottom end of the dry reed support (14) is connected with an annular magnet (15), the bottom end of the annular magnet (15) is connected with a float (16), and the outer wall of the float (16) is gap-fitted with the inner wall of the opening of the first connecting flange (2), the second connecting flange (4) and the monitoring box body (1).

4. The gas relay having an automatic exhaust function according to claim 3, characterized by, The two ends of the dry reed support (14) are respectively connected with a pull fork (17) and a plurality of dry reed contacts (18), and the end of the pull fork (17) away from the dry reed support (14) is connected with the probe (11).

5. The gas relay having an automatic exhaust function according to claim 1, wherein The front end face of the relay shell (5) is provided with a viewing window (19).

6. The gas relay having an automatic exhaust function according to claim 5, wherein The outer wall of the viewing window (19) is processed with a scale line (20).

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