RU59789U1 - COLLECTOR WITH INTEGRATED MIXING UNIT - Google Patents

Abstract

The objective of the solution is to develop a multifunctional, unified and monoblock collector, and the technical result is the optimization of control, distribution, circulation, mixing, indication and control of the coolant (working fluid). A manifold with an integrated mixing unit, consisting of supply B and return C parts, including supply 1 and return pipe 2, micrometer valves 3, balancing valves 4, fill and drain valves 5, manual air vent valves 6, docking connectors 7 and thermometers 8 characterized by the fact that it is equipped with an integrated mixing unit A, including an additional manual air vent valve 6, a circulation pump 10, a bypass line 9 with a balancing valve 11, a two-way valve 12, and also a discharge balancing valve 13 and a balancing valve 14 for adjusting the flow rate of the coolant in the supply 1 and return 2 pipelines. A collector with an integrated mixing unit is characterized in that a thermostatic head 15 or an electromechanical drive is installed on a two-way valve. A collector with an integrated mixing unit is characterized in that the micrometer valves 3 can be equipped with electromechanical actuators. A manifold with an integrated mixing unit is also characterized in that the balancing valves 4 can have flow meters. 1 n.p. f-ly, 2 ill.

Description

A collector with an integrated mixing unit refers to devices for changing heat transfer.

Known collectors for heat exchange and heat transfer devices, for example, a collector (connecting comb) company OVENTROP, Germany (1). However, such collectors are not economical and compact enough.

The objective of the solution is to develop a multifunctional, unified and monoblock collector, and the technical result is the optimization of control, distribution, circulation, mixing, indication and control of the coolant (working fluid).

For this purpose, a collector with an integrated mixing unit is proposed, consisting of the supply and return parts, including the supply and return pipes, micrometric valves, balancing valves, fill and drain valves, manual air vent valves, connecting connectors and thermometers, characterized in that it is equipped with built-in mixing unit, including an additional manual air discharge valve, a circulation pump, a bypass line with a balancing valve, a two-way valve inlet, as well as a discharge balancing valve and a balancing valve for adjusting the flow of coolant in the supply and return pipelines.

A collector with an integrated mixing unit is characterized in that a thermostatic head or an electromechanical drive is installed on the two-way valve.

A manifold with an integrated mixing unit is characterized in that the micrometric valves can be equipped with electromechanical actuators.

A manifold with an integrated mixing unit is also characterized in that the balancing valves can have flow meters.

The solution is illustrated by drawings, in which Fig. 1 is a schematic diagram of a collector with an integrated mixing unit, and Fig. 2 is an external view of a collector with an integrated mixing unit.

Letters denote: A - mixing unit, B - supplying part, C - returning part. The numbers indicate: 1 - supply pipe, 2 - return pipe, 3 - micrometric valves, 4 - balancing valves, 5 - filling and drain valves, 6 - manual air vent valves, 7 - connecting connectors, 8 - thermometers, 9 - bypass line, 10 - circulation pump, 11 - balancing valve, 12 - inlet two-way valve, 13 - outlet balancing valve, 14 - adjustment valve for setting the coolant, 15 - control element. The arrows indicate the inputs and outputs of the coolant.

A collector with an integrated mixing unit is operated as follows.

The flow of coolant enters the mixing unit A. Its required amount is passed through a two-way valve 12, while the maximum allowable amount is set by the tuning valve 14, through which the coolant returns. The two-way valve can be manually controlled, a thermostatic head with an external capillary sensor 15 or an electric actuator (not shown), which is controlled by a heat supply controller (not shown). The required amount of coolant is added to the system due to the pressure on the supply line, in turn, the circulation of the coolant through the consumer

carried out by a circulation pump 10. Then, the coolant enters the supply part B.

Next, the coolant passes through micrometric valves 3 that control the flow of coolant to the consumer, control is carried out both manually and by means of electromechanical valves (not shown) connected to the controller of the heat supply control of the consumer. After passing through the consumer, the coolant enters the return part C, where it passes through the balancing valve 4, which sets the required flow rate through the consumer. After passing through the return part, the coolant enters the circulation pump 10 through the balancing valve 14, which sets the estimated flow rate for consumers. In turn, when all micrometric valves 3 are closed, the bypass line 9 with the balancing valve 11 is adjusted so as to ensure a minimum flow of the coolant to prevent breakdown of the pump.

Drain valves 5 are used to empty the collector during maintenance, a manual air vent 6 is used to release air when they are filled, and thermometers 8 on the supply B and return C parts are used to visually monitor the temperature of the coolant in the corresponding parts.

The main advantages of a collector with an integrated mixing unit are as follows.

- Multifunctionality

It is used to prepare the required temperature and maintain it, distribute the coolant and heat load between consumers, for which it is carried out:

- preparation of the required temperature of the coolant due to the injection of high temperature from the heat source into the return coolant from the heat consumer by opening-closing a two-way valve 12 installed at the inlet to the collector;

- maintaining the desired temperature of the coolant for the entire group of consumers connected to this collector, by setting the temperature on the thermostatic head 15.

The thermostatic head is mounted on a two-way valve 12, the thermostatic head sensor is superimposed on the pressure manifold (patch sensor) or inserted into the pressure manifold (built-in sensor). The sensor monitors the set temperature and gives a command to open (when the temperature drops from the set) or to close (when the set temperature is reached) the two-way valve.

The unit can automatically maintain the set parameters of the coolant depending on temperature fluctuations in the street. To do this, it is additionally required to install: an external control unit with the functions “recalculate the heat-transfer parameter depending on the external temperature”, and install an actuator (servomotor, servomotor) operating on a two-way valve 12, operating by the open-close command from the external control unit.

The coolant can be distributed among consumers. Each consumer is connected to the collector at two points: one on the discharge manifold, the other on the return manifold. For each consumer, a micrometer valve 3 is installed at the connection point on the pressure head manifold, and a balancing valve 4 is installed at the connection point on the return manifold. The micrometer valve 3 allows you to install an actuator (servomotor, servo drive, thermostatic head) for supplying the heat carrier to a specific consumer. Balancing valve 4 allows hydraulic linkage

(balance) all consumers connected to this collector, and also to redistribute the heat load between consumers connected to this collector. Two to ten consumers can be connected. The collector has its own built-in circulation pump 10, which provides heat carrier circulation independent of the heat supply source for consumers connected to this collector.

- Unification

The collector can be used:

- in ventilation systems for distributing the coolant between several heat exchangers, heaters, etc. supply air heating or recovery systems connected to the same heat source;

- in high-temperature heating systems (radiators, convectors, registers) for distribution and control of the heat carrier between several consumers connected to the same heat source;

- in low-temperature heating systems (water floor heating, snow melting and anti-icing systems) for distribution and control of the heat carrier along separate circuits of these systems;

- in refrigeration systems (chiller - fan coil systems, heat pump - fan coil systems).

- Monoblock

Placement of all mechanisms - control, distribution, circulation, mixing, indication and control, assembled and tested in the factory, allows you to:

- to save the working time of designing organizations, while there is no need for separate design and hydraulic linking (balancing) of separately designed units (mixing unit, circulation pumps, calculation of the hydraulics of heating devices and pipelines to them, monitoring units and maintaining the required coolant parameters); in this design, all functions are combined into a single unit;

- save the working time of installation organizations, since all the nodes and mechanisms are assembled in one place, it is enough to install the collector and connect a heat source, consumers and power supply to it;

- to distribute and control the heat consumption by each consumer on the collector as a “center for the collection and distribution of coolant", which greatly facilitates the work of service, maintenance and monitoring organizations, as well as directly to the consumer;

- greatly facilitates the work on troubleshooting or incorrect operation of the heater, because everything is concentrated and comes from one point;

- to achieve significant energy savings due to the distribution of the coolant "not as a whole", but to each specific consumer, as well as using automation equipment and control of heat supply processes.

The source of information.

1. HOGART catalog, 2003, p. 26.

Claims (4)

1. A manifold with an integrated mixing unit, consisting of the supply and return parts, including the supply and return pipes, micrometric valves, balancing valves, fill and drain valves, manual air vent valves, connecting connectors and thermometers, characterized in that it is equipped with a built-in a mixing unit, including an additional manual air vent valve, a circulation pump, a bypass line with a balancing valve, a two-way valve inlet, and a discharge balancer irovochny valve and balancing valve to adjust the flow of coolant in the supply and return line. 2. A manifold with an integrated mixing unit according to claim 1, characterized in that a thermostatic head or an electromechanical drive is installed on the two-way valve. 3. A manifold with an integrated mixing unit according to claim 1, characterized in that the micrometric valves can be equipped with electromechanical actuators. 4. A manifold with an integrated mixing unit according to claim 1, characterized in that the balancing valves may have flow meters.