A high-voltage cabinet control system

Abstract

This invention discloses a high-voltage switchgear control system, comprising an indoor temperature sensor, an indoor heat exchanger, a single-chamber heat exchange medium circulation and delivery pipe, an outdoor heat exchanger, a single-chamber heat exchange medium circulation and delivery pump, a single-chamber heat exchange medium circulation and delivery valve, a multi-chamber heat exchange medium circulation and delivery pipe, a multi-chamber heat exchange medium circulation and delivery pump, a multi-chamber heat exchange medium circulation and delivery valve, a main heat exchanger, a main heat exchange medium circulation and delivery pipe, a main heat exchange medium circulation and delivery pump, a main heat exchange medium circulation and delivery valve, a temperature control device, and a main control device. The high-voltage switchgear control system of this invention can simultaneously monitor and control the temperature of the compartments in multiple high-voltage switchgears, and can control the temperature of the same type of compartment in each high-voltage switchgear within the same temperature range, thereby ensuring the stable operation of multiple high-voltage switchgears; it can also reduce the energy consumption for compartment temperature adjustment.

Description

Technical Field

[0001] This invention relates to a high-voltage switchgear control system. Background Technology

[0002] High-voltage switchgear typically has multiple compartments, including a busbar compartment, a circuit breaker compartment, a cable compartment, and an instrument compartment. To ensure stable operation of the high-voltage switchgear, the temperature within each compartment needs to be monitored and controlled. In some applications, multiple high-voltage switchgear units are installed side-by-side, requiring simultaneous monitoring and control of the temperature within all compartments. Furthermore, the temperature in the same type of compartment (e.g., the busbar compartment, circuit breaker compartment, cable compartment, or instrument compartment) of each high-voltage switchgear unit must be controlled within the same temperature range (between the low-temperature warning temperature and the high-temperature warning temperature). Summary of the Invention

[0003] The purpose of this invention is to provide a high-pressure switchgear control system, comprising: multiple high-pressure switchgear arranged side by side; each high-pressure switchgear having an independently configured indoor temperature sensor, indoor heat exchanger, single-chamber heat exchange medium circulation and delivery pipe, and outdoor heat exchanger in each compartment of the same type; a single-chamber heat exchange medium circulation and delivery pump and a single-chamber heat exchange medium circulation and delivery valve independently configured on each single-chamber heat exchange medium circulation and delivery pipe; a multi-chamber heat exchange medium circulation and delivery pipe; a multi-chamber heat exchange medium circulation and delivery pump and a multi-chamber heat exchange medium circulation and delivery valve configured on the multi-chamber heat exchange medium circulation and delivery pipe; a main heat exchanger; a heat exchange medium circulation and delivery main pipe; a heat exchange medium circulation and delivery main pump and a heat exchange medium circulation and delivery main valve configured on the heat exchange medium circulation and delivery main pipe; a temperature control device; and a main control device.

[0004] The main control device controls the operation of each single-chamber heat exchange medium circulation pump, each single-chamber heat exchange medium circulation valve, multi-chamber heat exchange medium circulation pump, multi-chamber heat exchange medium circulation valve, heat exchange medium circulation main pump, heat exchange medium circulation main valve, and temperature control device based on the temperature detected by each indoor temperature sensor.

[0005] For details on the high-voltage switchgear control system and the specific control methods of the main control device, please refer to the detailed implementation method.

[0006] The advantages and beneficial effects of this invention are as follows: It provides a high-voltage switchgear control system that can simultaneously monitor and control the temperature of the compartments of multiple high-voltage switchgears, and can control the temperature of the same type of compartment in each high-voltage switchgear to the same temperature range, thereby ensuring the stable operation of multiple high-voltage switchgears; it can also reduce the energy consumption for compartment temperature adjustment. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the present invention. Implementation

[0008] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0009] The specific technical solution of this invention is as follows:

[0010] like Figure 1 As shown, the present invention provides a high-pressure cabinet control system, comprising: multiple high-pressure cabinets arranged side by side; each high-pressure cabinet having an independently configured indoor temperature sensor W1, an indoor heat exchanger H1, a single-chamber heat exchange medium circulation and delivery pipe G1, and an outdoor heat exchanger H2 in each of the same type of compartment S1; a single-chamber heat exchange medium circulation and delivery pump B1 and a single-chamber heat exchange medium circulation and delivery valve F1 independently configured on each of the single-chamber heat exchange medium circulation and delivery pipe G1; a multi-chamber heat exchange medium circulation and delivery pipe G2; a multi-chamber heat exchange medium circulation and delivery pump B2 and a multi-chamber heat exchange medium circulation and delivery valve F2 configured on the multi-chamber heat exchange medium circulation and delivery pipe G2; a main heat exchanger H3; a heat exchange medium circulation and delivery main pipe G3; a heat exchange medium circulation and delivery main pump B3 and a heat exchange medium circulation and delivery main valve F3 configured on the heat exchange medium circulation and delivery main pipe G3; a temperature control device J1; and a main control device.

[0011] The indoor temperature sensor W1 and the indoor heat exchanger H1 configured in the same compartment S1 are both located inside the compartment S1; the indoor temperature sensor W1 is used to detect the temperature of the compartment S1 in which it is located.

[0012] The outdoor heat exchanger H2 configured in any compartment S1 is located outside the high-pressure cabinet where the compartment S1 is located;

[0013] The same compartment S1 is equipped with an indoor heat exchanger H1, a single-chamber heat exchange medium circulation and conveying pipe G1 and an outdoor heat exchanger H2. The single-chamber heat exchange medium circulation and conveying pipe G1 is connected to the indoor heat exchanger H1 and the outdoor heat exchanger H2 respectively. The compartment S1 exchanges heat with the heat exchange medium conveyed by the single-chamber heat exchange medium circulation and conveying pipe G1 through the indoor heat exchanger H1.

[0014] The multi-chamber heat exchange medium circulation and delivery pipe G2 is connected to the main heat exchanger H3 and each outdoor heat exchanger H2 respectively; the heat exchange medium delivered by the single-chamber heat exchange medium circulation and delivery pipe G1 exchanges heat with the heat exchange medium delivered by the multi-chamber heat exchange medium circulation and delivery pipe G2 through the outdoor heat exchanger H2 connected to the single-chamber heat exchange medium circulation and delivery pipe G1.

[0015] The heat exchange medium circulation conveying main pipe G3 is connected to the main heat exchanger H3 and the temperature control device J1 respectively; the heat exchange medium conveyed by the multi-chamber heat exchange medium circulation conveying pipe G2 exchanges heat with the heat exchange medium conveyed by the heat exchange medium circulation conveying main pipe G3 through the main heat exchanger H3; the temperature control device J1 is used to adjust the temperature of the heat exchange medium conveyed by the heat exchange medium circulation conveying main pipe G3.

[0016] The main control unit is connected to each indoor temperature sensor W1, each single-chamber heat exchange medium circulation pump B1, each single-chamber heat exchange medium circulation valve F1, each multi-chamber heat exchange medium circulation pump B2, each multi-chamber heat exchange medium circulation valve F2, the main heat exchange medium circulation pump B3, the main heat exchange medium circulation valve F3, and the temperature control device J1.

[0017] The main control device controls the operation of each single-chamber heat exchange medium circulation pump B1, each single-chamber heat exchange medium circulation valve F1, the multi-chamber heat exchange medium circulation pump B2, the multi-chamber heat exchange medium circulation valve F2, the main heat exchange medium circulation pump B3, the main heat exchange medium circulation valve F3, and the temperature control device J1 based on the temperature detected by each indoor temperature sensor W1; specifically:

[0018] If the indoor temperature sensor W1 detects that the temperature of its compartment S1 is between the low temperature warning temperature and the high temperature warning temperature (the high temperature warning temperature is higher than the low temperature warning temperature), the main control device determines that the compartment S1 is the normal temperature compartment S1.

[0019] If the indoor temperature sensor W1 detects that the temperature of its compartment S1 has dropped to the low temperature warning temperature, the main control device determines that compartment S1 is the low temperature warning compartment S1.

[0020] If the indoor temperature sensor W1 detects that the temperature of its compartment S1 has risen to the high temperature warning temperature, the main control device determines that compartment S1 is a high temperature warning compartment S1.

[0021] If a compartment S1 is determined to be a normal temperature compartment S1, the main control device controls the single-chamber heat exchange medium circulation pump B1 and the single-chamber heat exchange medium circulation valve F1 on the single-chamber heat exchange medium circulation pipeline G1 configured in the normal temperature compartment S1 to be closed; this isolates the normal temperature compartment S1 from its configured outdoor heat exchanger H2, preventing it from being affected by the outdoor heat exchanger H2, that is, the main control device does not adjust the temperature of the normal temperature compartment S1;

[0022] If it is determined that both a low-temperature warning compartment S1 and a high-temperature warning compartment S1 exist simultaneously, the main control device will open both the single-chamber heat exchange medium circulation pump B1 and the single-chamber heat exchange medium circulation valve F1 on the single-chamber heat exchange medium circulation pipe G1 configured in both the low-temperature and high-temperature warning compartments S1 and S1. Simultaneously, the main control device will open both the multi-chamber heat exchange medium circulation pump B2 and the multi-chamber heat exchange medium circulation valve F2, and close both the main heat exchange medium circulation pump B3 and the main heat exchange medium circulation valve F3. This allows heat exchange between the low-temperature warning compartment S1 and the high-temperature warning compartment S1 to be realized, ensuring the low-temperature warning compartment... The temperature of chamber S1 increases, causing the temperature of high-temperature warning chamber S1 to decrease until: only normal temperature chamber S1 exists (even if both low-temperature warning chamber S1 and high-temperature warning chamber S1 become normal temperature chamber S1); or, low-temperature warning chamber S1 exists and high-temperature warning chamber S1 does not exist (even if high-temperature warning chamber S1 becomes normal temperature chamber S1); or, high-temperature warning chamber S1 exists and low-temperature warning chamber S1 does not exist (even if low-temperature warning chamber S1 becomes normal temperature chamber S1); through heat exchange between low-temperature warning chamber S1 and high-temperature warning chamber S1, the energy consumption for temperature adjustment of chamber S1 can be reduced;

[0023] If it is determined that a low-temperature warning compartment S1 exists and a high-temperature warning compartment S1 does not exist, the main control device controls the single-chamber heat exchange medium circulation pump B1 and the single-chamber heat exchange medium circulation valve F1 on the single-chamber heat exchange medium circulation pipe G1 configured in the low-temperature warning compartment S1 to open. The main control device also controls the multi-chamber heat exchange medium circulation pump B2 and the multi-chamber heat exchange medium circulation valve F2 to open, and the main control device controls the main heat exchange medium circulation pump B3 and the main heat exchange medium circulation valve F3 to open. Furthermore, the main control device controls the temperature control device J1 to adjust the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipe G3, raising the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipe G3 to above the high-temperature warning temperature. This raises the temperature of the low-temperature warning compartment S1 to above the low-temperature warning temperature (effectively turning the low-temperature warning compartment S1 into a normal temperature compartment S1).

[0024] If it is determined that a high-temperature warning compartment S1 exists and a low-temperature warning compartment S1 does not exist, the main control device controls the single-chamber heat exchange medium circulation pump B1 and the single-chamber heat exchange medium circulation valve F1 on the single-chamber heat exchange medium circulation pipe G1 configured in the high-temperature warning compartment S1 to open. The main control device also controls the multi-chamber heat exchange medium circulation pump B2 and the multi-chamber heat exchange medium circulation valve F2 to open, and the main control device controls the main heat exchange medium circulation pump B3 and the main heat exchange medium circulation valve F3 to open. Furthermore, the main control device controls the temperature control device J1 to adjust the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipe G3, so that the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipe G3 is reduced to below the low-temperature warning temperature. This will reduce the temperature of the high-temperature warning compartment S1 to below the high-temperature warning temperature (effectively turning the high-temperature warning compartment S1 into a normal temperature compartment S1).

[0025] More specifically:

[0026] Each indoor heat exchanger H1, each outdoor heat exchanger H2, and the main heat exchanger H3 are all insulated heat exchangers.

[0027] Each single-chamber heat exchange medium circulation and transportation pipe G1, multi-chamber heat exchange medium circulation and transportation pipe G2, and heat exchange medium circulation and transportation main pipe G3 are all insulated pipes.

[0028] The heat exchange medium in each single-chamber heat exchange medium circulation and transport pipe G1, multi-chamber heat exchange medium circulation and transport pipe G2, and heat exchange medium circulation and transport main pipe G3 is an insulating heat exchange medium.

[0029] The compartment S1 is a busbar compartment, circuit breaker compartment, cable compartment, or instrument compartment.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-voltage switchgear control system, characterized in that, include: Multiple high-voltage switchgear, each with its own independently configured indoor temperature sensor, indoor heat exchanger, single-chamber heat exchange medium circulation pipeline, and outdoor heat exchanger in the same compartment; each single-chamber heat exchange medium circulation pipeline has its own independently configured single-chamber heat exchange medium circulation pump and valve; multi-chamber heat exchange medium circulation pipeline, multi-chamber heat exchange medium circulation pump and valve configured on the multi-chamber heat exchange medium circulation pipeline; main heat exchanger; main heat exchange medium circulation pipeline; main heat exchange medium circulation pump and valve configured on the main heat exchange medium circulation pipeline; temperature control device; and main control device; indoor temperature sensors configured in the same compartment. The heat exchanger and indoor heat exchanger are both located inside the compartment; the indoor heat exchanger, single-chamber heat exchange medium circulation and delivery pipe, and outdoor heat exchanger are configured in the same compartment, wherein the single-chamber heat exchange medium circulation and delivery pipe are connected to the indoor heat exchanger and the outdoor heat exchanger respectively; the multi-chamber heat exchange medium circulation and delivery pipe are connected to the main heat exchanger and each outdoor heat exchanger respectively; the main heat exchange medium circulation and delivery pipe is connected to the main heat exchanger and the temperature control device respectively; the main control device is connected to each indoor temperature sensor, each single-chamber heat exchange medium circulation and delivery pump, each single-chamber heat exchange medium circulation and delivery valve, the multi-chamber heat exchange medium circulation and delivery pump, the multi-chamber heat exchange medium circulation and delivery valve, the main heat exchange medium circulation and delivery pump, the main heat exchange medium circulation and delivery valve, and the temperature control device respectively; The main control device controls the operation of each single-chamber heat exchange medium circulation pump, each single-chamber heat exchange medium circulation valve, multi-chamber heat exchange medium circulation pump, multi-chamber heat exchange medium circulation valve, main heat exchange medium circulation pump, main heat exchange medium circulation valve, and temperature control device based on the temperature detected by each indoor temperature sensor; specifically: If the indoor temperature sensor detects that the temperature of the compartment is between the low temperature warning temperature and the high temperature warning temperature, the main control device determines that the compartment is a normal temperature compartment. If the indoor temperature sensor detects that the temperature of the compartment has dropped to the low temperature warning temperature, the main control device determines that the compartment is a low temperature warning compartment; If the indoor temperature sensor detects that the temperature in the compartment has risen to the high temperature warning temperature, the main control device determines that the compartment is a high temperature warning compartment; If a compartment is determined to be a normal temperature compartment, the main control device will control the single-chamber heat exchange medium circulation pump and the single-chamber heat exchange medium circulation valve on the single-chamber heat exchange medium circulation pipeline configured in the normal temperature compartment to be closed. If it is determined that both a low-temperature warning compartment and a high-temperature warning compartment exist simultaneously, the main control device controls the single-chamber heat exchange medium circulation pump and single-chamber heat exchange medium circulation valve on the single-chamber heat exchange medium circulation pipeline configured in the low-temperature warning compartment and the high-temperature warning compartment to be opened. The main control device also controls the multi-chamber heat exchange medium circulation pump and multi-chamber heat exchange medium circulation valve to be opened, and the main control device controls the main heat exchange medium circulation pump and the main heat exchange medium circulation valve to be closed. If it is determined that there is a low-temperature warning compartment but no high-temperature warning compartment, the main control device controls the single-chamber heat exchange medium circulation pump and single-chamber heat exchange medium circulation valve on the single-chamber heat exchange medium circulation pipeline configured in the low-temperature warning compartment to open. The main control device also controls the multi-chamber heat exchange medium circulation pump and multi-chamber heat exchange medium circulation valve to open. Furthermore, the main control device controls the main pump and main valve of the heat exchange medium circulation pipeline to open. Finally, the main control device controls the temperature control device to adjust the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipeline, so that the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipeline rises above the high-temperature warning temperature. If it is determined that there is a high-temperature warning compartment but no low-temperature warning compartment, the main control device controls the single-chamber heat exchange medium circulation pump and single-chamber heat exchange medium circulation valve on the single-chamber heat exchange medium circulation pipeline configured in the high-temperature warning compartment to open. The main control device also controls the multi-chamber heat exchange medium circulation pump and multi-chamber heat exchange medium circulation valve to open, as well as the main heat exchange medium circulation pump and main heat exchange medium circulation valve. Furthermore, the main control device controls the temperature control device to adjust the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipeline, so that the temperature of the heat exchange medium transported by the main heat exchange medium circulation pipeline is reduced to below the low-temperature warning temperature.

2. The high-voltage switchgear control system according to claim 1, characterized in that, The outdoor heat exchanger in any compartment is located outside the high-voltage switchgear in which the compartment is located.

3. The high-voltage switchgear control system according to claim 1, characterized in that, All indoor heat exchangers, all outdoor heat exchangers, and the main heat exchanger are insulated heat exchangers.

4. The high-voltage switchgear control system according to claim 1, characterized in that, All single-chamber heat exchange medium circulation and transportation pipes, multi-chamber heat exchange medium circulation and transportation pipes, and main heat exchange medium circulation and transportation pipes are insulated pipes.

5. The high-voltage switchgear control system according to claim 1, characterized in that, The heat exchange medium in each single-chamber heat exchange medium circulation and transportation pipe, multi-chamber heat exchange medium circulation and transportation pipe, and heat exchange medium circulation and transportation main pipe is an insulating heat exchange medium.

6. The high-voltage switchgear control system according to claim 1, characterized in that, The compartments are busbar compartments, circuit breaker compartments, cable compartments, or instrument compartments.

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